bluuebunny/crossref_metadata_2025 huggingface dataset:
Komunistiskās partijas kontroles mehānisms Latvijas Padomju rakstnieku savienībā: Žaņa Grīvas piemērs
Authors: Eversone Madara
Published: March 2021

It was in the interests of the Communist Party to create a representative image of Latvian Soviet writers, which would represent the interests of the party and at the same time oversee the course of literary life in the Latvian Soviet Writers’ Union. Such was the writer Žanis Grīva in the Latvian Soviet literary process. The influential positions in the Soviet nomenclature gave him power in the creative environment and created opportunities to monitor the implementation of the Communist Party’s course.
The article aims to put forward the personality of Žanis Grīva in the context of the research of the Latvian soviet literary process and the Latvian Soviet Writers’ Union, proposing several issues to be further researched and developed in the future.
The article is based on the documents of the Latvian Soviet Writers’ Union and the Communist Party local organization of the Latvian Soviet Writers’ Union, and the personal file of Žanis Grīva in the Central Committee of the Communist Party of Latvia, and documents of the Žanis Grīva collection that are available at the Latvian State Archive of the National Archives of Latvia, as well as Žanis Grīva’s personal documents regarding his life and professional activities that are available at the Aleksejs Apinis Rare Books and Manuscripts Reading Room at the National Library of Latvia. Memories of contemporaries were also investigated.
It is concluded that the role of Žanis Grīva in the Latvian soviet literary process and the Latvian Soviet Writers’ Union is political and purposefully constructed by the Communist Party, and has little to do with literature and literary talents. It can be assumed that Žanis Grīva has negatively affected the creative activity of some members of the Writers’ Union, such as Gunārs Priede.
Algo más que monoaminas en el tratamiento de la depresión: Mecanismos neurobiológicos emergentes de los antidepresivos del siglo XXI
Authors: Álamo González Cecilio , Zaragozá Cristina , López-Muñoz Francisco
Published: March 2021

Clásicamente, el tratamiento farmacológico de la depresión se ha realizado con antidepresivos monoaminérgicos, que presentan una serie de limitaciones, como un lento inicio de acción, una inadecuada respuesta antidepresiva, disfunción sexual o tolerabilidad mejorable. En esta revisión analizaremos nuevos mecanismos fisiopatológicos implicados en la depresión como dianas para la búsqueda de antidepresivos diferentes. En el ámbito de la endocrinología los resultados son desalentadores, efímeros (TRH), limitados (hormonas tiroideas), dudosos (antagonistas CRH1), controvertidos (estrógenos) o poco eficaces (andrógenos). Varios neuropéptidos están implicados en la patogenia de la depresión, como la hormona antidiurética, la oxitocina, la sustancia P, el neuropéptido Y o la galanina, pero su abordaje desde el punto de vista terapéutico no ha dado resultados terapéuticos. La relación entre depresión y procesos inflamatorios es patente, pero los datos de eficacia, muchas veces anecdóticos, de algunos antiinflamatorios, antagonistas de TNF o anticuerpos monoclonales no pueden generalizarse. La participación del sistema opioide endógeno también se ha explorado, pero su potencial adictivo hace que no dispongamos en estos momentos “opioides antidepresivos”. La hipótesis glutamatérgica de la depresión ha sido trabajada durante más de 3 décadas y por fin parece que ha dado resultados: la esketamina, un isómero de la ketamina, ha demostrado, gracias a un programa de desarrollo clínico robusto, que es un antidepresivo de acción rápida, eficaz en depresión resistente, con una tolerabilidad aceptable, lo que ha motivado su autorización en depresión resistente en asociación con antidepresivos convencionales. La esketamina es la respuesta terapéutica a la “hipótesis glutamatérgica de la depresión”.
VERBS OF MOVEMENT AS INDICATORS OF SENSE RELATIONS IN DESCRIPTIVE PREDICATES (A FRAGMENT OF A LINGUODIDACTIC MODEL OF RUSSIAN GRAMMAR)
Authors: Панков Ф.И. , Пищурова А.О.
Published: March 2021

Одна из лакун лингводидактической модели русской грамматики – описательные предикаты, неотъемлемой составной частью которых являются показатели смысловых отношений – экспликаторы. Статья представляет собой опыт анализа глаголов движения во вторичной семантической функции в качестве экспликаторов. В статье рассмотрена полевая структура категории описательных предикатов с глаголами движения, включающая ядро, приядерную зону и периферию. Языковой материал показал, что в основе образования описательных предикатов с глаголами движения лежит семантика однословного коррелята. Корректное использование глаголов движения в составе описательных предикатов позволит инофонам, с одной стороны, успешно решить свои коммуникативные потребности, а с другой – сделать речь более образной и эмоциональной.

One of the lacunae of the linguodidactic model of Russian grammar is descriptive predicates, an integral part of which are indicators of semantic relations – explicators. The article presents the experience of analyzing verbs of movement in the secondary semantic function as explicators. The article considers the field structure of the category of descriptive predicates with verbs of movement, including the core, the prionuclear zone and the periphery. The language material has showed that the formation of descriptive predicates with verbs of movement is based on the semantics of the one-word correlate. Correct use of verbs of movement as part of descriptive predicates will allow foreign speakers, on the one hand, to successfully solve their communication needs, and on the other hand, to make speech more imaginative and emotional.
ANALISIS USABILITAS WEBSITE SIAM UMRI MENGGUNAKAN METODE USABILITY TESTING
Authors: Yul Faradila Ananda , Jannah Miftahul
Published: March 2021

The thing that underlies the existence of a website is the development of information and communication technology. This study aims to measure the Usability level of the Student Academic Information System (SIAM) Website at Universitas Muhammadiyah Riau. Some problems encountered were that there was no reusability evaluation of the UMRI SIAM website, as well as complaints from UMRI students when accessing the website. The reusability problem in this study was resolved by conducting usability testing with five dimensions proposed by Nielsen (1993), namely learnability, efficiency, memorability, error & user satisfaction when accessing the SIAM UMRI website and using the thinking aloud method which required 3-5 respondents. The subjects studied were expert users (UMRI students) and novice users (non-UMRI students). Based on the results of the analysis on the learnability dimension, it is found that the respondents have the ability to learn a good website. In the efficiency dimension, the results of the increase in the speed of completing tasks by the respondents are obtained. Furthermore, in the memorability dimension, the results show that the respondents have good memory ability. In the error dimension, there are 38 problems when accessing the SIAM UMRI website, and in the satisfaction dimension, the results of respondents' satisfaction when accessing the SIAM UMRI website are obtained with a score of 70. In addition, in this study there are recommendations for improving the SIAM UMRI website.
Penerapan Metode Balanced Scorecard dan Analytical Hierarcy Process (AHP) Dalam Penentuan Karyawan Berprestasi (Studi Kasus : Kantor Pertanahan Kota Pekanbaru)
Authors: Aguansyah Dega
Published: March 2021

The National Land Agency (abbreviated BPN in Indonesian) is a non-ministerial government institution that is under and responsible to the President and led by the Head (in accordance with Presidential

Decree No. 63 of 2013). The problems that occur at the Pekanbaru Land Office in determining outstanding employees are only seen based on the results of the work they do, not based on the criteria for each employee. Therefore, this study was conducted to provide application in determining outstanding employees with more detailed results based on the criteria of each employee using several methods,

including the Balanced Scorecard method and the Analytical Hierarchy Process (AHP). Based on the

research results, it is known that based on the Balanced Scorecard method, the criteria to be used are Comprehension, Accuracy, Craft, and Discipline with the same highest value, namely 12.25. After that, each employee was assessed based on the criteria using the Analytical Hierarchy Process (AHP) method with the highest score being DHEA with a value of 0.301.
The Influence of Nature and Nurture
Authors: Zhang Nickey
Published: March 2021

Nature and nurture have been a topic of discussion for years, and yet there has been no final conclusion on what is most important. This research paper goes through the process of discovering which of the two influences the human person more, along with how, and why. Information specifically regarding the relation of nature and nurture on both health and personality are included, with given descriptions of different health conditions and situations that may cause them. Discussions on what causes different health conditions and the largest factor in those health conditions are used to determine the importance of either genes or environment. The involvement of the personalities and information of serial killers are present in this paper and serve as the biggest connection between personality and environment. However, the final conclusion of this paper is that there is no true side that overpowers the other, and the entanglement of nature and nurture are so close that it is near impossible to know which is more important, especially with the current research present.
INVESTIGATION OF PROPERTIES OF SYNTHETIC BONE SUBSTITUTES
Authors: Voinič Lech , Šešok Andžela , Stonkus Rimantas , Šešok Nikolaj
Published: March 2021

The article compares different materials of bone substitutes – bioceramics: hydroxyapatite (HA), tricalcium phosphate (CaP) and polymer: polylactide (PLA). In the paper determines which of the substitutes is mechanically similar to the natural bone. Universal testing machine for tensile, compression was used for research. The properties of the test substances were determined by a compression and hardness test. Comparative tests are conducted with HA, CaP, PLA which were kept for 3 weeks in physiological saline and with natural pig bone. The mechanical properties of PLA specimens produced by 3D printers have been found to be similar to natural bone. When held in saline, PLA does not change its properties and dissolves less quickly than tricalcium phosphate.
RR Lyrae Variables in Messier 53: Near-infrared Period–Luminosity Relations and the Calibration Using Gaia Early Data Release 3
Authors: Bhardwaj Anupam , Rejkuba Marina , de Grijs Richard , Yang Soung-Chul , Herczeg Gregory J. , Marconi Marcella , Singh Harinder P. , Kanbur Shashi , Ngeow Chow-Choong
Published: March 2021

We present new near-infrared, JHK

s
, period–luminosity relations (PLRs) for RR Lyrae variables in the Messier 53 (M53 or NGC 5024) globular cluster. Multi-epoch JHK

s
observations, obtained with the WIRCam instrument on the 3.6 m Canada–France–Hawaii Telescope, are used for the first time to estimate precise mean magnitudes for 63 RR Lyrae stars in M53 including 29 fundamental-mode (RRab) and 34 first-overtone mode (RRc) variables. The JHK

s
-band PLRs for RR Lyrae stars are best constrained for RRab types with a minimal scatter of 22, 23, and 19 mmag, respectively. The combined sample of RR Lyrae is used to derive the K

s
-band PLR,

K

s

=
−
2.303
(
0.063
)
log
P
+
15.212
(
0.016
)

, exhibiting a 1σ dispersion of only 0.027 mag. Theoretical period–luminosity–metallicity (PLZ) relations are used to predict parallaxes for 400 Galactic RR Lyrae, resulting in a median parallax zero-point offset of −7 ± 3 μas in Gaia Early Data Release 3 (EDR3), which increases to 22 ± 2 μas if the parallax corrections are applied. We also estimate a robust distance modulus, μ
M53 = 16.403 ± 0.024 (statistical) ± 0.033 (systematic) mag, to M53 based on theoretical calibrations. Homogeneous and precise mean magnitudes for RR Lyrae in M53 together with similar literature data for M3, M4, M5, and ω Cen are used to empirically calibrate a new RR Lyrae

PLZ

K

s

relation,

K

s

=
−
0.848
(
0.007
)

−
2.320
(
0.006
)
log
P
+
0.166
(
0.011
)
[
Fe

/

H
]

, anchored with Gaia EDR3 distances and theoretically predicted relations, and to simultaneously estimate precise RR Lyrae-based distances to these globular clusters.
Tracing Young Star-forming Clumps in the Nearby Flocculent Spiral Galaxy NGC 7793 with UVIT Imaging
Authors: Mondal Chayan , Subramaniam Annapurni , George Koshy , Postma Joseph E. , Subramanian Smitha , Barway Sudhanshu
Published: March 2021

Star formation in galaxies is a hierarchical process with a wide range of scales, from smaller clusters to larger stellar complexes. Here, we present an ultra-violet imaging study of the nearby flocculent spiral galaxy NGC 7793, observed using the Ultra-Violet Imaging Telescope (UVIT). We find that the disk scale length estimated in Far-UV (2.64 ± 0.16 kpc) is larger than that in Near-UV (2.21 ± 0.21 Kpc) and optical (1.08 Kpc), which supports the inside-out growth scenario of the galaxy disk. The star-forming UV disk is also found to be contained within the extent of H i gas, with a column density greater than 1021 cm−2. With the spatial resolution of UVIT (1 pixel ∼ 6.8 pc), we identified 2046 young star-forming clumps in the galaxy with radii between ∼12 and 70 pc, which matches well with the size of giant molecular clouds (GMCs) detected in the galaxy. Around 61% of the regions identified in our study are younger than 20 Myr, which points to a recent enhancement in star formation across the galaxy. We also note that the youngest star-forming regions, with an age of <10 Myr, distinctly trace the flocculent arms of the galaxy. The estimated mass of the clumps covers a range between 103 and 106
M
⊙. We notice a gradient in the mass distribution of identified clumps along the spiral arms. We also study the nuclear star cluster of the galaxy, finding that the stellar populations in the cluster outskirts are younger than the inner part.
The Synchrotron-based Far-infrared Spectrum of Glycolaldehyde
Authors: Collier Breanna , Krueger Kristopher , Miller Isaac , Zhao Jianbao , Billinghurst Brant E. , Raston Paul L.
Published: March 2021

Glycolaldehyde (GA) has been observed toward several different sources, with a broad range of rotational temperatures (8–300 K). At the high end, the temperature is comparable to the energy of the lowest vibrational states of GA, making the vibrational contribution to the partition function significant. Here, we report an analysis of the high-resolution far-infrared spectrum of GA, which features a plethora of well-resolved lines from 170–430 cm−1 (13–5 THz). We focus on the three fundamental vibrational bands in this range, i.e., the symmetric ν
12 bend at 282 cm−1, and the asymmetric ν
17 and ν
18 torsions at 360 and 208 cm−1, respectively. We assigned 23,266 transitions to 13,999 lines within these bands, which, when combined with the previously reported microwave and millimeter-wave spectra, allowed for refinement of the vibrationally excited rotational constants, and accurate determination of their band origins. Additionally, the assignment of a number of lines in several hot bands that are significantly populated at 300 K allowed for determination of their band origins. The rotational constants reported here should be useful in searches of vibrationally excited GA toward warm sources, and the accurately determined band origins allow for refinement of the vibrational partition function, and therefore column density, for a given excitation temperature.
The Hα Dots Survey. IV. A Fourth List of Faint Emission-line Objects
Authors: Watkins Joseph D. , Salzer John J. , Sistine Angela Van , Hayslip Ana , Hoar Eric , Rampalli Rayna
Published: March 2021

We present the fourth catalog of serendipitously discovered compact extragalactic emission-line sources—Hα Dots. A total of 454 newly discovered objects are included in the current survey list. These objects have been detected in searches of moderately deep narrowband images acquired for the ALFALFA Hα project. The catalog of Hα Dots presented in the current paper was derived from searches carried out using ALFALFA Hα images obtained with the KPNO 2.1 m telescope. This results in a substantially deeper sample of Dots compared to our previous lists, which were all discovered in images taken with the WIYN 0.9 m telescope. The median R-band magnitude of the current catalog is 21.59, more than 1.6 mag fainter than the median for the 0.9 m sample (a factor of 4.4× fainter). Likewise, the median emission-line flux of the detected sources is a factor of 4.3× fainter. The line flux completeness limit of the current sample is ~3 × 10−16 erg s−1 cm−2. We present accurate coordinates, apparent magnitudes, and narrowband line fluxes for each object in the sample. Unlike our previous lists of Hα Dots, the current sample does not include follow-up spectroscopy.
Revisiting the Fundamental Parameters of 49 New Star Clusters in Gaia DR2
Authors: Li Zhongmu , Deng Yangyang , Chen Jing
Published: March 2021

Reliable fundamental parameters of star clusters such as distance modulus, metallicity, age, extinction, and binary fraction are of key importance for astrophysical studies. Although a lot of new star clusters were identified from the data of, e.g., Gaia Data Release 2 (Gaia DR2), the fundamental parameters of many clusters were not determined reliably. This work makes use of the photometry data of Gaia DR2 and a good color–magnitude diagram (CMD) analysis tool, Powerful CMD, to determine the fundamental parameters of 49 new star clusters in detail. All CMDs are fitted carefully by both statistics and by eye, to make sure the CMDs are reproduced as well as possible. As a result, the fundamental parameters of 22 clusters are determined reliably, and those of the others are also determined as well as we can. Because the width of the main sequence in the color direction is used, combined with other widely used CMD features to constrain the fundamental parameters, the results of this work are more reliable than those reported by single-star isochrone fits. As a feature of this work, the primordial binary fractions and rotating star fractions of star clusters have been reported, which are useful for many works, in particular for some simulation research.
Terminator Double Layer Explorer (TerDLE): Examining the Near-Moon Lunar Wake
Authors: Farrell W. M. , Clark P. E. , Collier M. R. , Malphrus B. , Folta D. C. , Keidar M. , Bradley D. C. , MacDowall R. J. , Keller J. W.
Published: March 2021

As the solar wind flows by the Moon, an antisunward-directed low-density wake forms as the plasma expands to fill in the trailing void in the plasma flow. Analytical modeling and modern plasma simulations suggest that plasma quasi-neutrality could possibly be broken close to the terminator obstruction as solar wind electrons expand into the wake ahead of the ions, leading to the formation of a standing (time-stationary) double layer. The objective of the Terminator Double Layer Explorer is to extend the fundamental understanding of the plasma expansion into the trailing near-vacuum wake region by (1) identifying any plasma expansion density anomalies at low altitudes near the terminator wake initiation region, (2) assessing the highly variable solar wind’s effect on the low-altitude wake region, and (3) determining if plasma neutrality is maintained or lost during passages through the low-altitude expansion region. The mission concept uses a propulsion-driven CubeSat with ion spectrometer and plasma wave system in elliptical orbit about the Moon with periselene near the terminator. Over the course of the mission, the periselene decreases, placing the CubeSat ever closer to the terminator wake initiation location and the possible nonneutral region.
Fractionation of Solar Wind Minor Ion Precipitation by the Lunar Paleomagnetosphere
Authors: Poppe A. R. , Garrick-Bethell I. , Fatemi S.
Published: March 2021

The analysis of solar wind material implanted within lunar soil has provided significant insight into the makeup and evolutionary history of the solar wind and, by extension, the Sun and protosolar nebula. These analyses often rely on the tacit assumption that the Moon has served as an unbiased recorder of solar wind composition over its 4.5 billion yr lifetime. Recent work, however, has shown that for a majority of its lifetime, the Moon has possessed a dynamo that generates a global magnetic field with surface field strengths of at least 5 μT. In turn, the presence of such a field has been shown to significantly alter the lunar–solar wind interaction via the formation of a lunar “paleomagnetosphere.” This paleomagnetosphere has implications for the flux of solar wind minor ions to the lunar surface and their subsequent implantation in lunar soil grains. Here we use a three-dimensional hybrid plasma model to investigate the effects of the lunar paleomagnetosphere on the dynamics and precipitation of solar wind minor ions to the lunar surface. The model results show that the lunar paleomagnetosphere can suppress minor ion fluxes to the lunar surface by more than an order of magnitude and strongly fractionates the precipitating solar wind in a complex, nonlinear fashion with respect to both the minor ion charge-to-mass ratio and the surface paleomagnetic field strength. We discuss the implications of these results with respect to both the analysis of trapped material in lunar grains and the semiquantitative 40Ar/36Ar antiquity indicator for lunar soils.
An update to the taxonomy and distribution of the Arabian TapinomaFoerster, 1850 (Hymenoptera: Formicidae) with an illustrated key and remarks on habitats
Authors: Abdel-Dayem Mahmoud , Al Dhafer Hathal , Aldawood Abdulrahman , Sharaf Mostafa
Published: March 2021

Tapinoma Foerster belongs to the ant subfamily Dolichoderinae and the vast majority of its species are arboreal or generalized foragers. The genus is composed of 71 described species and 24 known subspecies worldwide, while from Arabian Peninsula, three species have been recorded so far.

Ants of the genus Tapinoma of the Arabian Peninsula are reviewed, keyed and illustrated based on the worker caste. Three species are diagnosed, T. melanocephalum (Fabricius, 1793), T. simrothi Krausse, 1911, and T. wilsoni Sharaf & Aldawood, 2012. We present the first illustrated key to the Arabian Tapinoma enhanced by automontage images to facilitate species recognition. New distributional data for species are presented based on recently collected material from the region and literature records. Information on habitats preference and biology of species are given.
Economics of forest biomass for bioenergy: potential site preparation savings from coarse woody harvesting residue removal in a short-rotation Eucalyptus globulus (Labill.) plantation
Authors: Strandgard Martin , Béland Mathieu
Published: March 2021

The study used time studies and cost analysis to assess potential economic benefits from site preparation cost reductions resulting from producing coarse woody harvesting residue (CWHR) for bioenergy. In contrast, previous studies have predominantly used anecdotal estimates of site preparation costs.The study was performed in a recently clearfelled 15-year-old plantation of Eucalyptus globulus (Labill) in Tasmania, Australia. The study area consisted of the control area (0.51 ha), containing ~35 m3 ha-1 of CWHR and the CWHR harvest area (2.47 ha), containing ≤12 m3 ha-1 of CWHR. The control area had been harvested with a harvester – forwarder system, which left all harvesting residue (HR) onsite, where-as the CWHR harvest area had been harvested with a feller-buncher – skidder – processor system which removed most of the HR. The latter site was used to simulate an area where CWHR had been harvested. The study examined productivities and costs of machines performing site preparation in each area. The preparation of the control area site was performed with an excavator that windrowed CWHR, fol-lowed by a skidder-mounted plough constructing planting furrows. Residual CWHR post-windrowing was <1 m3 ha-1. Productivities and costs were 0.53 ha PMH0-1 and AUD$319 ha-1 for the excavator and 1.1 ha PMH0-1 and AUD$139 PMH0-1 for the skidder-mounted plough. The excavator was not required in the CWHR harvest area. In this area, skidder-mounted plough productivity and cost were 1.16 ha PMH0-1 and AUD$109 ha-1 suggesting CWHR reduction to ≤12 m3 ha-1 could reduce site preparation costs by AUD$319 ha-1. Further studies on costs and revenues associated with CWHR removal and sale are required to determine net economic benefits and determine excavator cost and productivity for a range of CWHR quantities.
Effects of season and food on the scatter-hoarding behavior of rodents in temperate forests of Northeast China
Authors: Li Dianwei , Liu Yang , Shan Hongjia , Li Na , Hao Jingwei , Yang Binbin , Peng Ting , Jin Zhimin
Published: March 2021

To explore the differences in hoarding strategies of rodents for different seeds in various seasons, we labeled and released the seeds of Pinus koraiensis, Corylus mandshurica, Quercus mongolica and Prunus sibirica in temperate forests of Northeast China and investigated the fate of the seeds in spring and autumn. The analysis showed that the hoarding strategies of the rodents varied substantially between seasons. The seeds were consumed faster in the spring than in the autumn. More than 50% of the seeds in the two seasons were consumed by the 16th day. It took 36 days to consume 75% of the seeds in the spring and 44 days in the autumn. The rate of consumption of the seeds in the spring was greater than in the autumn, and the rate of spread of the seeds was greater in the autumn. The distances of removal for the consumption and dispersal of seeds in the spring (3.26 ± 3.21 m and 4.15 ± 3.52 m, respectively) were both shorter than those in the autumn (3.74 ± 3.41 m and 4.87 ± 3.94 m, respectively). In addition, the fate of different seeds varied significantly owing to differences in hoarding strategies. The seeds of the three preferred species, P. koraiensis, C. mandshurica, and Q. mongolica, were quickly consumed. More than 90% of the seeds of these species were consumed. Only 21% of Pr. sibirica seeds were slowly consumed, and the two seasons had the same seed consumption rate patterns: the consumption rate of P. koraiensis seeds was the highest, followed by C. mandshurica, then Q. mongolica, and finally Pr. sibirica. The median removal times of the two seasons were different, but the rules were the same: P. koraiensis was the shortest, followed by C. mandshurica, and the third was Q. mongolica. In both seasons, the most predated in situ seeds were those of P. koraiensis; the most hoarded seeds were those of C. mandshurica, and the most unconsumed seeds were those of Pr. sibirica.
Preliminary project design for insect production: part 1 – overall mass and energy/heat balances
Authors: Kok R.
Published: March 2021

Preliminary project design (PPD) is an initial stage in project development that makes it possible for an entopreneur to gain insight into the feasibility and potential profitability of setting up an insect production facility. In this paper a simple, spreadsheet-based model is presented to facilitate the first step of PPD by estimating the overall mass and energy balances for a proposed project. The model calculates outputs on the basis of scientific data and estimated values for operating parameters for the system that is proposed. With the model it is easy to use a trial-and-error approach to investigate the effect of different parameter values on system operation. Thus, the entopreneur can enter values for parameters such as feed composition, temperature of the cooling air, etc. and see the effect on system productivity, conversion efficiency, energy requirements, etc. immediately. This facilitates the overall procedure of reaching final decisions about the organism, the feed, the processing approach, the scale of operation, etc. Normally, this is an iterative procedure that is based on ‘trial-and-error’, the two aspects being referred to here as the ‘twin components of an iterative knowledge engine’. Thus, the outputs from the model will depend very much on the scientific data supplied and the values of the input parameters while, at the same time, use of the model will highlight what additional scientific data is needed and what alternate parameter values might prove profitable. Overall, the model allows the user to explore a large possibility space for both process constitution and operation much more quickly and easily than by experimental means alone. As such, it is a tool that can aid the entopreneur in thinking about a project and considering various alternatives, as well as in making decisions before a major commitment is made to any particular option. It is stressed here that PPD is only a preliminary stage in project development and that the investigation of overall process mass and energy balances is only the first step thereof. It is also stressed that results from modelling are invariably subject to empirical verification as well as ‘common-sense filtering’. The model presented is general and thus not oriented to the production of any species in particular.
Empowerment or Limitation of the Teachers’ Rights and Abilities in the Prevailing Digital Environment
Authors: Toktamysov Saken , Berestova Anna , Israfilov Nail , Truntsevsky Yuri , Korzhuev Аndrey
Published: March 2021

Digital education is actually a product of recent years, although it existed before in various forms. Obviously, modern devices and means of transmitting infor-mation are necessary for its development. Modern “virtual lectures”, e-learning courses, online testing, educational resources portals, as well as digital school registers and educational process monitoring systems have become everyday real-ity. However, the digitalization of the educational system has both positive and negative side. The purpose of the article is to consider the impact of digital educa-tional technologies on learning, from a university teacher’s view point, and to consider their positive aspects and problems. The study was conducted at the I.M. Sechenov First Moscow State Medical University (Sechenov University) and University at the Inter-Parliamentary Assembly of EurAsEC. The study in-volved 89 teachers who have teaching experience at the university (11.9% - 1-7 years, 28.1% - 8-10 years; 30.8% - 11-15 years; 29.2% - 16-25 years). The main results show that, respondents overly have a good opinion towards learning in virtual environments. The advantages of e-learning are complex for a particular measurement, but it has been found that some identifying variables as “age” shows statistically significant differences, while “gender” and “teaching experi-ence” are not important for evaluating the four provided variables. The study re-sults can be used to improve the perception of new educational technologies by teachers, to organize approaches for introducing innovative educational technolo-gies that expand the possibilities of progressive education on the part of admin-istrations of higher educational institutions and educational departments.
Engagement of Students in Data Visualization for the Purpose of E-Learning Improvement
Authors: Zotov Vladimir , Ibrahim Iman , Petunina Irina , Lazareva Yuliya
Published: March 2021

The study describes an approach to e-learning based on the Moodle platform that is used to visualize participation in the learning community and is proposed to be used to inform students and teachers about their involvement in the social learn-ing environment. The experiment involved 5 teachers and 3 experts who deter-mined the most significant visualization indicators for the virtual learning envi-ronment dashboards. There were 42 students aged 21 to 23. The virtual learning environment is based on the Moodle and Blackboard platforms that are common-ly used in universities. SocialWall allowed participants to perform actions in the social environment that are visualized in graphs under the specified criteria. A Wiki repository plugin was also added in order to accumulate student knowledge in shared structured documents stored in a shared repository. The relational data-base management system MySQL allows creation of additional relations, data-base design and administration. The visualization activities described in the study are based on modified state transition networks to analyze and visualize the stu-dent learning path. Student trajectory networks show the interaction of individual learners or groups with the course structure and material.
Providing Adaptivity in Moodle LMS Courses
Authors: Shchedrina Elena , Valiev Ildar , Sabirova Fairuza , Babaskin Dmitrii
Published: March 2021

This study was aimed at investigating ways to ensure the adaptivity of Moodle courses to improve the efficiency of the educational process. As the main re-search method, the survey was used to study the issues of ensuring the adaptivity of eLearning in Moodle. Besides, within the current work, the method of achiev-ing the course adaptivity was combined with a personalized approach proposed by Limongelli et al. It was revealed that most study participants have difficulties with self-learning and perceiving educational material through audio records (36.4% and 36.4%, respectively). The development of the model for adaptive eLearning in Moodle was based on the use of the personalization approach, which provides an automatic adjustment of educational content according to stu-dents’ knowledge and way of learning. The adaptivity of eLearning courses is necessary for the successful implementation of online training in today’s educa-tion system. Prospects for the practical use of the research results lie in the possi-bility of an international exchange of experience concerning Moodle courses’ adaptivity.
L’accompagnement comme expérience de l’expérience accompagnée
Authors: Grimault Solveig
Published: March 2021

Certains dispositifs publics d’accompagnement suggèrent que l’expérience des bénéficiaires devient un objet central de l’intervention. Les conseillers y parviennent diversement, selon la conception de l’accompagnement de l’opérateur. Revisitant le matériau d’enquêtes de terrain sur la mise en œuvre des dispositifs du CTP, du CSP et du Nacre, l’article s’intéresse à la façon dont, en pratique, se « couplent » ou non l’expérience des conseillers et celle des bénéficiaires. Il insiste sur les limites d’un accompagnement « juxtaposant les prestations », et explore les conditions d’un « service d’accompagnement » attentif à l’expérience des bénéficiaires comme des conseillers. Il revient ainsi sur les enjeux de professionnalisation des réseaux d’accompagnement.
Dénouements possibles de l’expérience d’impasse : pistes de compréhension et perspectives développementales
Authors: Salini Deli , Poizat Germain
Published: March 2021

Cet article explore l’expérience d’impasse selon une perspective d’analyse de l’activité et propose des pistes de compréhension de ses possibles dénouements, en situations de conseil et d’accompagnement en formation des adultes. Sur la base de deux études portant sur une pratique de conseil et sur une formation à médiation artistique, l’impasse est conceptualisée comme un repli de la dynamique de signification dans l’expérience des individus. Surgissant lors d’évènements vécus comme inattendus, ce repli est d’ordinaire surmonté dans les dynamiques développementales courantes. Mais il peut aussi ne pas l’être, et contribuer à une forme d’enkystement ou de nécrose développementale, et par là même à l’accroissement de la vulnérabilité. Dans ce cas, des interventions encourageant les composantes abductives et iconiques de la signification jouent souvent un rôle décisif pour la relance de la dynamique développementale.
Configurations dialogiques et développement de l’expérience en accompagnement VAE
Authors: Rémery Vanessa
Published: March 2021

Cet article vise à restituer les résultats d’une étude conduite sur les pratiques d’accompagnement en Validation des Acquis de l’Expérience (VAE) dans une perspective d’analyse des activités discursives et interactionnelles et à proposer des pistes de formation en direction des accompagnateur·rice·s. Pour décrire les modalités de mise au travail de l’expérience des candidat·e·s, une analyse des dialogues et de la dynamique des rapports de rôle et de place est proposée. À partir de la mise en évidence de la double complexité dialogique et relationnelle des entretiens VAE, l’article présente des configurations dialogiques instrumentées par les acteur·rice·s au cours de leurs échanges, et l’usage qui pourrait en être termes de formation pour les accompagnateur·rice·s en VAE.
Razões para a Manutenção do Laço Conjugal diante de Eventos Críticos em Casamentos Longevos
Authors: Grizólio Talita Cristina , Santos Manoel Antônio dos , Scorsolini-Comin Fabio
Published: March 2021

O objetivo deste estudo foi conhecer como cônjuges engajados em relacionamentos de longa duração enfrentaram eventuais situações de crise conjugal e suas repercussões sobre suas concepções acerca da separação. Foram entrevistados 25 casais unidos, em média, havia 39,48 anos, com variação de 32 a 53 anos. A média de idade dos cônjuges foi de 64,06 anos, variando de 51 a 82 anos, todos provenientes de cidades do interior dos estados de São Paulo e Minas Gerais. Os participantes foram entrevistados individualmente e em díades por meio de dois roteiros distintos, totalizando 75 entrevistas. A análise temático-reflexiva resultou em três temas principais: 1) menções à possibilidade de divórcio; (2) eventos críticos deflagradores de reflexões sobre o divórcio; (3) justificativas para não se divorciar. A separação conjugal foi aventada em variados contextos, relacionada aos filhos, ao desgaste da relação, à rotina e aos conflitos inerentes à partilha da conjugalidade. A perspectiva de abandonar o casamento, contudo, na maioria dos casais entrevistados, foi superada por reflexões que envolviam aspectos socioculturais, a responsabilidade do casal para com a criação dos filhos e até mesmo os aspectos financeiros que poderiam impactar a vida de ambos os cônjuges pós-dissolução.
Elaboração de Protocolo de Atendimento Psicológico no Hospital Geral: Usuários de Álcool
Authors: Pinheiro Cláudia De Jesus , Castelo Branco Andréa Batista de Andrade
Published: March 2021

O uso abusivo de álcool possui elevada incidência e implica em repercussões em várias esferas da vida do indivíduo, demandando intervenções psicológicas efetivas. Esse estudo objetivou a elaboração de um protocolo de atendimento psicológico direcionado a pacientes hospitalizados que fazem uso abusivo de álcool. Trata-se de uma pesquisa qualitativa de caráter exploratório. Os dados foram coletados através de entrevistas semiestruturadas com profissionais de psicologia hospitalar e observação participante com pacientes. Para interpretação dos dados, foi utilizada a Análise de Conteúdo. O processo de revisão, categorização e observação proporcionou a elaboração de 10 itens do protocolo. Os resultados evidenciaram a necessidade do psicólogo avaliar aspectos relacionados à hospitalização, às possíveis alterações psíquicas, aos riscos e danos associados ao uso, ao mapeamento das potencialidades e ao estágio de mudança do paciente. Além disso, o psicólogo pode realizar intervenções de suporte emocional ao paciente e família, bem como estratégias baseadas na atuação multiprofissional, na articulação em rede e na política de redução de danos. Conclui-se que o psicólogo hospitalar pode sistematizar e fundamentar cientificamente suas práticas voltadas aos usuários de álcool mediante o uso de protocolo, garantindo o cuidado em saúde mental a esse público no hospital geral.
Nd:YAG laser in association with pulsed dye laser for the treatment of PHACES syndrome
Authors: Negosanti Francesca , Silvestri Martina , Bennardo Luigi , Durastante Chiara , Del Duca Ester , Cannarozzo Giovanni , Nisticò Steven P.
Published: March 2021

The acronym PHACES stands for posterior fossa malformations, hemangiomas, arterial anomalies (cardiovascular or cerebrovascular), coarctation of the aorta/cardiac defects, eye abnormalities, and sternal defects. The characteristic dermatological clinical manifestation of PHACES syndrome is a segmental and extensive hemangioma, usually on the face. A combined therapy with 1,064 nm Nd-YAG/595-nm pulsed dye laser was performed in a young 15-year-old patient with PHACES syndrome, who presented a hemangioma on the left side of the face, located in the periorbital region. A first session with Nd-YAG laser (2,5 mm spot size, fluence 100 J/cm2, pulse duration 7 ms) for the treatment of teleangectasias and subsequently, three treatment sessions with pulsed dye laser (12 mm spot size, fluence 7 J/cm2, pulse duration 0,5 ms, repetition rate 0,6 Hz), once every 2 months, were performed. No postoperative complications were recorded, except for transient purpura after the pulsed dye laser sessions. The vascular lesion had a decrease in size bigger than 75%, and these results was maintained 6 months after the last treatment. Combined therapy Nd- YAG/pulsed dye laser is an effective and noninvasive procedure for hemangiomas in patients with PHACES syndrome.
Key words for 2020: Pandemic, emergency, anomie
Authors: Lorettu Liliana
Published: March 2021

Dear Editor,

In 2020, global society was disrupted by the COVID-19 pandemic, which has confronted everyone with an unusual, unknown situation, an unprecedented humanitarian emergency. The sudden outbreak has put health systems under enormous pressure and has caused major organisational problems, operational uncertainties and ethical conflicts. In particular, health workers had to deal with the emergency in both their personal and their working lives. While we wanted and had to treat our patients, we risked and feared getting infected too. (...)
Is pleural effusion in COVID-19 interstitial pneumonia related to in-hospital mortality?
Authors: Cereda Alberto , Toselli Marco , Palmisano Anna , Leone Riccardo , Vignale Davide , Nicoletti Valeria , Campo Gianluca , Monello Alberto , Ippolito Davide , Giannini Francesco , Esposito Antonio
Published: March 2021

The recent severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) pandemic has highlighted the importance of pulmonary computed tomography (CT) for diagnosis and prognostic stratification of this new viral pneumonia. 1370 lung CT scans (performed at the time of admission) of consecutive patients hospitalized for SARS-CoV-2 in Northern Italy during the first epidemic wave were analyzed by a radiological CoreLab. The presence of pleural effusion on pulmonary CT scan was present in 188 patients (13.3% of the population) and identified a population with more comorbidities. Patients with pleural effusion had more cardio-respiratory complications with higher mortality. Pleural effusion was an independent predictor of death on multivariate analysis with an HR of 1.4 (95% confidence interval 1-1.9). Pulmonary CT pleural effusion was an independent predictor of mortality.
The design of a force feedback soft gripper for tomato harvesting
Authors: Kultongkham Asiwan , Kumnon Supakit , Thintawornkul Tawan , Chanthasopeephan Teeranoot
Published: March 2021

In smart farming, both artificial intelligence and robotic systems are applied in order to improve efficiency. In agriculture, for jobs such as seeding, monitoring, and harvesting, robots are widely used. When using robots to harvest fruit and vegetables, it is essential not to apply excessive force, as it may damage the harvest. In this paper, a soft robotic three-fingered gripper is presented. It was designed and analysed using the finite element method. Each finger is made of silicone rubber. The shape of the finger is designed so that it is capable of handling spherical shaped objects, such as tomatoes or oranges. When holding a tomato, the fingers apply the contact force. The fingers are actuated pneumatically and the force applied is also controlled by a micro controller. The pressure inside the air chamber of the finger is in the range of 0- 95 kPa. Force sensors are attached to the end of each finger to provide force feedback. Then, the holding force is adjusted and applied to the surface of the tomato. The gripper can successfully grasp tomatoes with a force less than the bio-yield of the tomatoes 2.57 N.
Unlikely intersections between isogeny orbits and curves
Authors: Dill Gabriel A.
Published: March 2021

Fix an abelian variety

A_0

and a non-isotrivial abelian scheme over a smooth irreducible curve, both defined over the algebraic numbers. Consider the union of all images of translates of a fixed finite-rank subgroup of

A_0

, also defined over the algebraic numbers, by abelian subvarieties of

A_0

of codimension at least

k

under all isogenies between

A_0

and some fiber of the abelian scheme. We characterize the curves inside the abelian scheme which are defined over the algebraic numbers, dominate the base curve and potentially intersect this set in infinitely many points. Our proof follows the Pila–Zannier strategy.
Effect of Gamma Irradiation on Chlorophyll Content in the Cowpea (Vigna unguiculata (L.) Walp)
Authors: Azigwe C. , Zoryeku P. A. D. , Asante I. K. , Oppong-Adjei F.
Published: March 2021

The experiment was conducted to study the mutagenic effect of gamma rays on chlorophyll content at three different physiological stages in the cowpea: pre-flowering, flowering and post-flowering. Five sets of cowpea seeds were subjected to individual doses of gamma rays: 400 Gy, 450 Gy, 500 Gy, 600 Gy and 0 Gy. The seeds were sown to raise the M1 generation. The M1 generation seeds were collected and sown in the next season to raise the M2 generation. Leaf chlorophyll content was measured for M2 generation plants. Mean chlorophyll content for pre-flowering stage ranged between 38.9 ± 8.17 (control) and 64.2 ± 6.16 (400 Gy). Flowering stage mean chlorophyll content ranged from 48.3 ± 14.4 (600 Gy) to 99.4 ± 6.22 (450 Gy). Post-harvest chlorophyll mean content ranged between 13.1 ±0.98 (600 Gy) and 38.0 ±1.90 (400 Gy). There were significant differences in treatment effects for pre-flowering (P = 0.021), flowering (P = 0.005) and harvest (P = 0.000). At pre-flowering treatment, treatment 400 Gy scored a significant increase of 64 percent (P = 0.02) above the control. The optimum dose for useful induced mutation for increases in chlorophyll concentration in the cowpea was 400 Gy.
Effect of N- 3, 4-Dichlorophenyl -N, N-Dimethylurea (Diuron) Herbicide to Serum Biochemistry of Clarias gariepinus
Authors: Popoola O.M. , Olasoji L.O.
Published: March 2021

Assessing the effect of Diuron herbicide on post juvenile African catfish (Clarias gariepinus) using specific biochemical markers could provide vital information concerning the health status with regards to electrolyte determination. The fishes were subjected to different concentrations of diuron of (0.5, 0.75, 1.0, 1.25, and 1.5mgL-1 respectively) for 96hrs and the alterations in the serum enzymes, metabolites and ion level were determined. The lethal concentration (LC50) value of the herbicide was 1.0mg L-1 for 96h of exposure. During the experiment different behavioural changes were observed and recorded and blood samples were collected after 96hours of experiment to check for the effect of fish exposed to different concentration of diuron herbicide and the parameters observed were serum enzymes (ALT, ALP, AST and LDH). Biochemical examination was also carried out to know the changes in Total protein, glucose and cortisol level. Ion level examination was carried out to assess changes in sodium (Na+), potassium (K+) and chloride (Cl-). It was observed that there were significant differences (P˂0.05) in the serum enzymes analysis, biochemical examination and ion level examination and these parameters revealed differences with varying concentrations of diuron herbicide. Thus, diuron possesses toxicity effects on C. gariepinus

Keywords: Herbicide, Clarias gariepinus, serum enzymes