bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seasonal variations of plankton structure as bioindicators in Zayandehrud Dam Lake, Iran
Authors: Dorche Eisa Ebrahimi , Shahraki Mojgan Zare , Farhadian Omidvar , Keivany Yazdan 
Published: January 2019

Abstract
Zayandehrud Dam Lake located in Isfahan province is the largest lake in central Iran. In this study, the plankton communities including phytoplankton and zooplankton were studied as bioindicator organisms for assessment of water quality in the Zayandehrud Dam Lake. The water and phytoplankton organisms were collected from four stations at different seasons during 2014 by using a Nansen bottle sampler. The zooplankton samples were collected with a plankton net (mesh size = 50 µm). The phytoplankton community was composed of Bacillariophyceae, Cyanophyceae, Euglenophyceae, Dinophyceae and Chrysophyceae. The zooplankton community viz; Cladocera, Rotifera and Copepoda were found to have a density range of 13–155, 21–141 and 11–93 (ind. m−3), respectively. In general, phytoplankton and zooplankton communities, especially the presence of genera such as Cyclotella, Dynobrion, Bosmina and Daphnia (as indices of oligotrophic lakes) and also absence of Microsystis, Brachionus and Lecane are seen as important indices of eutrophic lakes. It could be concluded that the Zayandehrud Dam Lake can be classified as a healthy water body.
Transformations in the water relations in the Wieczno Południowe lake catchment (Chełmno Lakeland, Poland)
Authors: Piasecki Adam 
Published: January 2019

Abstract
The research involved a detailed analysis of transformations in water relations in the Wieczno Południowe (Wieczno South) lake drainage basin in central Poland, in the physical geographical region of the Chełmno Lakeland. Significant changes were identified in the water relations in the catchment, which were caused by a number of anthropogenic factors. The most significant factors include land development works, changes in land use (a decrease in wetland area in favour of arable land), and the extraction of water from Lake Wieczno South (for irrigation purposes) and the creation of a weir construction on its outflow. It has been shown that in recent years the drainage basin’s water resources have been affected by climate fluctuations manifested as an increase in sums of evaporation. As a result of the deterioration of water relations in the catchment, the hydrological type of some lakes (Płużnica, Wieczno North and Wieczno South) have changed, which unexpectedly resulted in an improvement of their water quality. Taking into account the forecasts for further climate change, this factor will probably have a decisive influence on the water relations of the studied area in the coming years.
Application of the WetSpass simulation model for determining conditions governing the recharge of shallow groundwater in the Poznań Upland, Poland
Authors: Graf Renata , Przybyłek Jan 
Published: January 2019

Abstract
Assessments of the infiltration recharge of groundwater are performed using various methods and on different scales. Infiltration is dependent of climatic factors, aspects of water circulation, as well as on quasi-stationary and variable environmental features of a specific area, which are frequently difficult to determine on the basis of direct measurements or observations. The objective of the present study was to identify factors conditioning recharge of shallow groundwater in selected catchment areas of the Poznań Upland using the WetSpass simulation water balance model with spatially distributed parameters. Our analysis has indicated favourable and unfavourable conditions for recharge of groundwater in the annual period and in both half-year periods, which are the result of mutual relationships between the physical qualities of these catchment areas and their climatic and hydrological characteristics. The results obtained also confirmed the impact of surface runoff and actual evapotranspiration on the spatial distribution of effective infiltration. With soil types and groundwater depth distributions being similar in the catchment areas, changes in relationships between components of water balance are caused by differences in the type of land usage. Application of the WetSpass model has made it possible to arrive at a more accurate assessment of groundwater recharge. The results obtained may be used for erification of recharge areas and values of effective infiltration, set as a boundary condition in groundwater flow models.
Modelling groundwater flow and nitrate transport: a case study of an area used for precision agriculture in the middle part of the Vistula River valley, Poland
Authors: Sieczka Anna , Bujakowski Filip , Koda Eugeniusz 
Published: January 2019

Abstract
The present paper discusses studies related to the preparation of a hydrogeological model of groundwater flow and nitrate transport in an area where a precision farming system is applied. Components of water balance were determined using the UnSat Suite Plus software (HELP model), while the average infiltration rate calculated for the study area equalled 20 per cent. The Visual MODFLOW software was used for the purpose of modelling in the saturated zone. Hydrogeological parameters of the model layers, inclusive of hydraulic conductivity, were defined on the basis of results of column tests that were carried out under laboratory conditions (column experiment). Related to the dose of mineral nitrogen used in precision fertilisation (80 kg N/ha), scenarios of the spread of nitrates in the soil-water environment were worked out. The absolute residual mean error calculated for nitrate concentrations obtained from laboratory and modelling studies equalled 0.188 mg/L, the standard error of the estimate equalling 0.116 mg/L. Results obtained were shown graphically in the form of hydroisohypse maps and nitrate isolines. Conclusions were drawn regarding the possibility of using numerical modelling techniques in predicting transport and fate of nitrates from fertilisers applied in precision agriculture systems.
AB Initio Calculations of CUN@Graphene (0001) Nanostructures for Electrocatalytic Applications
Authors: Piskunov S. , Zhukovskii Y. F. , Sokolov M. N. , Kleperis J. 
Published: January 2019

Abstract
Substitution of fossil-based chemical processes by the combination of electrochemical reactions driven by sources of renewable energy and parallel use of H2O and CO2 to produce carbon and hydrogen, respectively, can serve as direct synthesis of bulk chemicals and fuels. We plan to design and develop a prototype of electrochemical reactor combining cathodic CO2-reduction to ethylene and anodic H2O oxidation to hydrogen peroxide. We perform ab initio calculations on the atomistic 2D graphene-based models with attached Cu atoms foreseen for dissociation of CO2 and H2O containing complexes, electronic properties of which are described taking into account elemental electrocatalytical reaction steps. The applicability of the model nanostructures for computer simulation on electrical conductivity of charged Cun/graphene (0001) surface is also reported.
Economic disengagement in state-society relations in Russia: A regional perspective
Authors: Brunarska Zuzanna 
Published: January 2019

Abstract
This paper makes the first attempt to measure economic disengagement in state-society relations on a regional level, using the case of Russia. An original composite index was calculated based on a number of indicators measuring different spheres of contact between the state and society. The study examines regional diversity in intensity of economic disengagement in state-society relations in Russia. It also attempts to identify determinants of economic disengagement on a regional level. Seeking to identify regional level predictors of the intensity of disengagement, the study focuses on the specificity of the Russian space – its federal structure based on a combination of territorial and ethnic principles. The results show that economic disengagement is least intense in regions belonging to the Russian Far North, which points to the role of physical-geographical factors and path dependence. They also reveal that residents of ethnically-defined regions tend to be less economically disengaged than residents of oblasts and krays. Moreover, the share of ethnic Russians is positively related to economic disengagement in the former regions, while it is not significant in the latter. These findings potentially point to differences between ethnic Russians and members of titular groups in terms of their intensity of interaction with the state in the economic sphere.
Longitudinal and spatial perspectives on the mismatch of tertiary educated migrant workers in the Czech labour market: The case of Ukrainians
Authors: Valenta Ondřej , Drbohlav Dušan 
Published: January 2019

Abstract
The topic of an education-occupation mismatch of tertiary educated migrant workers in receiving countries is an important issue in contemporary research in international migration, especially in the context of growing international economic competition. In this article, we analyse the level of mismatch of tertiary educated migrant workers in the Czech labour market, with a particular focus on Ukrainian workers. Using a unique set of statistical data, several conclusions can be drawn from a longitudinal approach, as well as multiple regression analysis in order to identify possible determinants of the mismatch at a district level. First, the mismatch of tertiary educated migrants does exist and is growing over time. Second, it seems that the level of mismatch is higher in economically progressive districts with higher numbers of qualified domestic and foreign workers, which creates a higher level of competition in the labour market. As a result, a relatively higher share of tertiary educated migrant workers end up over-educated in professions they find in the secondary labour market in these districts. Using the example of Ukrainians, the progression of tertiary educated migrants into the Czech labour market over time faces rather limited vertical mobility, with a slight progression to more skilled occupations. This can be related to the complexity of factors from individual to institutional levels of analysis.
Famous hungarian chemists and pharmacists – modern chemistry founders. Part I. 1.2. Lajos Winkler
Authors: Árpád Gyéresi , Mihály Kata , Mária Gyéresi 
Published: January 2019

Abstract
Pharmacist Winkler Lajos, PhD (1863-1939, born in Arad), professor at the University of Sciences from Budapest and member of the Hungarian Academy of Sciences, is considered the founder of modern analytical chemistry and drug analysis in Hungary.
He has developed and perfected a series of methods of volumetric and gravimetric analysis. Its original method, developed in 1888 for the determination of dissolved oxygen in water, is still used today.
Winkler Lajos also played an important role in the development of pharmaceutical education in Hungary
Establishing an Authentic Artistic Identity
Authors: Sivri Melis Tanik 
Published: January 2019

Abstract
Shirin Neshat is an Iranian contemporary female artist who is in exile by choice. Born in Qazvin, Iran, in 1957, the artist moved to the United States in 1974 in order to study arts. Due to the Islamic Revolution in 1979, she was prevented from going back to her country. In 1990, after almost 12 years, Neshat visited Iran for the first time after the revolution, which transformed her artistic life into a productive one, full of prizes. The aim of this article is to reflect on the impact of Neshat’s homecoming experience in developing an authentic artistic identity. The emphasis of the paper will be on the artist’s first cinematic film, Turbulent (1998), which will be discussed as a manifestation of the artist’s working through the turbulent encounter with the changes in the motherland after a long separation due to the revolution.
Authenticity and Analytic Style
Authors: Mazzacane Fulvio 
Published: January 2019

Abstract
The question that has prompted this article could be formulated as follows: what are the vicissitudes of the analyst’s subjectivity in the bi-personal models and, more specifically, in the Bion field model? Using a clinical vignette, the author shows his own “toy box” mainly the way he uses reverie and the interplay between plot and characters in the session.
Why Bion Field Theory?
Authors: Pietrantonio Violet 
Published: January 2019

Abstract
What kind of functions does a theory carry out in the analyst’s mind at work? The author tries to describe, using a few analytic trailers, how Bion Field Theory (BFT) can become an oneiric psychoanalytic tool in the mind of the analyst working with inaccessible states of mind and the violence of nameless turbulences. The hypothesis expressed is that BFT, as described in the works of its principal authors (Ferro, Grotstein, Ogden et.c), seems to evoke a psych-O-analysis that chooses O as psychoanalytic vertex, developing the bionian idea of unconscious as psychoanalytic function of the mind. BFT introduces explains and illustrates an oneiric model of the mind and of the analytic cure. The priority given by this theory to the contact with emotional experience and the capacity to stay at one ment with the unknown emotional experience circulating in the hic et nunc, seems, in author’s analytical experience, to promote both the development of an authentic analytic Self and analytic ethic and a process of subjectivation in analyst, patient, analytic experience.
An Optimal Control Problem for A Viscoelastic Plate in a Dynamic Contact with an Obstacle
Authors: Bock Igor , Kečkemétyová Mária 
Published: January 2019

Abstract
We deal with an optimal control problem governed by a nonlinear hyperbolic initial-boundary value problem describing the perpendicular vibrations of a simply supported anisotropic viscoelastic plate against a rigid obstacle. A variable thickness of a plate plays the role of a control variable. We verify the existence of an optimal thickness function.
About Distributed Control in Model of Testosterone Regulation
Authors: Pinhasov Olga 
Published: January 2019

Abstract
In the paper, stability of integro-differential equation is studied. The model of testosterone regulation is considered. The model describes an interaction of: the concentration of hormone (GnRH) which will be denoted as x
1, with the concentration of the hormone (LH)-x
2 and the concentration of testosterone (Te)-x
3 and can be written in the form

{

x
′

1

(
t
)
+

b

1

x

1

(
t
)
=
0
,

x
′

2

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t
)
+

b

2

x

2

(
t
)
−

g

1

x

1

(
t
)
=
0
,

x
′

3

(
t
)
+

b

3

x

3

(
t
)
−

c

1

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1

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2

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d
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.

$$\left\{ {\matrix{ {{{x'}_1}(t) + {b_1}{x_1}(t) = 0,} \hfill \cr {{{x'}_2}(t) + {b_2}{x_2}(t) - {g_1}{x_1}(t) = 0,} \hfill \cr {{{x'}_3}(t) + {b_3}{x_3}(t) - {c_1}\int\limits_0^t {{e^{ - {\alpha _1}(t - s)}}{x_2}(s)ds = 0,\;t \ge 0.} } \hfill \cr } } \right.$$

The values bi
, i = 1, 2, 3 correspond to the respective half-life times of GnRH, LH and Te. The aim of the work is to propose a concept to hold the concentration of testosterone above a corresponding level. In order to achieve this, distributed input control in the form of integral term is used.
On Some Discrete Potential Like Operators
Authors: Vasilyev Alexander V. , Vasilyev Vladimir B. 
Published: January 2019

Abstract
We consider some discrete pseudo-differential equations in discrete Sobolev–Slobodetskii spaces. For a discrete half-space and certain values of an index of periodic factorization for an elliptic symbol we introduce additional potential-like unknowns and prove existence and uniqueness theorem in appropriate discrete Sobolev–Slobodetskii spaces.
Penciptaan DaminatilaFont untuk Penotasian Kendang dan Gamelan Sunda
Authors: Saepudin Asep 
Published: January 2019

Tulisan ini bertujuan menguraikan DaminatilaFont sebagai media penulisan kendang dan notasi Sunda. Melalui metode observasi, perancangan, percobaan, dan pembentukan, dilakukan perancangan dan pembuatan font untuk penulisan notasi kendang dan gamelan Sunda. DaminatilaFont adalah font notasi yang digunakan untuk menulis notasi kendang Sunda baik kendang Ketuk Tilu, Keurseus, Jaipongan, Kiliningan, Wayang Golek, Degung Kreasi, Degung Klasik, maupun Pencak Silat. DaminatilaFont bisa pula digunakan untuk menulis notasi gamelan Sunda yakni notasi daminatila. Perangkat yang digunakan dalam pembuatan DaminatilaFont adalah hardware (laptop Asus X453M, komputer, dan printer scanner merk cannon seri MG2500), software (High-Logic Font Creator 6.5 dan CorelDRAW X7), serta font acuan (Kepatihan Pro, Anggit Sunda5, Consolas, dan Courier New). Hasil kesimpulan diperoleh bahwa hadirnya DaminatilaFont telah terbukti mempermudah dan mempercepat proses penulisan notasi kendang Sunda dan notasi daminatila yang dapat digunakan oleh para Sarjana S-1, S-2, maupun S-3 dalam penyusunan laporan Tugas Akhirnya baik Pengkajian, Penyajian, maupun Penciptaan. DaminatilaFont sebagai solusi terbaik dalam memecahkan permasalahan dalam penulisan notasi dalam karawitan Sunda baik kendang maupun gamelan
E-Learning Media for Retakers in Achieving Level of Graduation Competence Nurse Indonesia Test in South Borneo
Authors: Basit Mohammad , Rahmayani Dini , Sambe Esy Andriani 
Published: January 2019

Introduction: At present the number of students who do not pass the Indonesian Nurse Competency Test (UKNI) or as a retaker is very high. Various types of programs have been carried out but the level of graduation achievement for retakers has not achieved maximum results. This is because retakers are far from the reach of Educational Institutions, so that in the process of coaching such as tutoring becomes less intensive. Therefore, currently there is a need for distance learning media such as the E-learning method for retakers. Methods: this research used the Pre Experimental Design with One Group Pretest -posttest, with 59 samples of retakers in South Kalimantan. Data collection uses observation techniques with analysis using the Wilcoxon Test. Results: of the Wilcoxon test showed a significance value = 0,000 (<0.005), indicating that there were differences in the results of the Graduation Rate on the pretest and posttest results before and after tutoring using a smartphone-based e-Learning method. The average results of the Indonesian Nurse Competency Test followed by the retakers who were respondents in the July 2018 period were declared competent there were 16 retakers (27.1%). Conclusions: the distance learning with E-learning method that utilizes smartphone applications is very effective to be used to increase the graduation rate of retakers in UKNI. This effectiveness is also supported by the maximum interaction between educators and retakers, between retakers and various educational facilities.
Comparison of Learning Method Effectiveness Between Jigsaw and Team Game Tournament on Achievement and Interpersonal Relationship Skill in Nursing Freshmen
Authors: Ayu Astarini Made Indra , Juwita Linda , Setiawan Arif Helmi 
Published: January 2019

Introduction: Evaluation results every semester about biochemical obtained by students the average value below 50. Cooperative learning method jigsaw and team game tournament (TGT) were an alternative learning method that can improved student learning outcomes. The purpose of this research was to understand the effectiveness of applied of jigsaw learning method compared to TGT to interpersonal relationship skill and achievement. Methods: This research used pre-experiment with research design Pretest-Posttest Comparison Group Design. Target population was all nursing students in two nursing institutions in Surabaya. Sample size were 208 chosen by total sampling. Independent variables were jigsaw and TGT and dependent variables were interpersonal relationship skill and achievement. Study instruments were interpersonal relationship skill questionnaire and objective test. Data analysis uses paired t test with α ≤ 0.05, prior normality test will be conducted. Results: Most respondents were 19 years old, single, female and lived with their parents. There was different result in student achievement between TGT and Jigsaw method (p = 0,005), TGT mean rank was 97,89 than jigsaw was 76,52. There was no different interpersonal relationship ability between TGT and jigsaw method (p = 0,263). Conclusions: TGT more effective than jigsaw to increase student learning achievement in biochemical. Those method has not different for student interpersonal relationship ability, because the student has been in good criteria for interpersonal relationship ability. Further implementation could be broad, other object in nursing could be the target, difficult subject would be underlined.
Antioxidant Assay of the Ethanolic Extract of Three Species of Rattan Fruits using DPPH Method
Authors: Salusu Heriad Daud , Aryani Farida , Budiarso Edy , Kusuma Irawan Wijaya , Arung Enos Tangke , Zarta Abdul Rasyid 
Published: January 2019

The bioactivity of some species of rattan fruit has been previously studied and it was found that it has potential antioxidant agents. This study was conducted to determine the antioxidant content in three species of edible rattan fruit, namely Calamus manan Miq., Calamus ornatus Bl. and Calamus caesius Bl by using the DPPH method, whereby the test was carried out on the pericarp, flesh, and seeds of each fruit. The research findings revealed that phytochemical compounds, i.e. flavonoids, tannins, and triterpenoids are found almost in all parts of the fruit, while steroid is not found in any of the three species of the fruit. The antioxidant activity found in the fruit of C. caesius Bl is strong, meanwhile the antioxidant activity in the fruit of C. manan Miq only strong in its pericarp and seeds, but it is moderate in its flesh. The antioxidant activity found in the fruit of C. ornatus Bl. is strong in its pericarp and seeds, but it is moderate in its flesh. Therefore, these three species of rattan fruit are potential as antioxidant agents.
Pengaruh Penggunaan Beberapa Jenis Ekstrak Tanaman Beralkaloid terhadap Produk Teh Kombucha
Authors: Nur Yulia M. , Indrayati Sri , Periadnadi Periadnadi , Nurmiati Nurmiati 
Published: January 2019

The research about The Effect of Some Alkaloid’s Plant Extract as Activator and the plant media for Acetobacter xylinum (Brown.) Holland in Fermented of Kombucha Tea, has been done from February to September in STIKes Perintis Laboratory. The aim of this study to know the effects of some alkaloid’s plant extract as activator and the plant media for Acetobacter xylinum (Brown.) Holland in Fermented of Kombucha Tea. The research used Completely Random Design (CRD) with 6 treatments and 4 replications. The treatments were : black tea, green tea, leaf of coffea, leaf of cocoa, coffea powder and cocoa powder. The result showed that the use of several types of plant extract beralkaloid effect on Kombucha tea products. In this study obtained the average of the highest total bacteria Acetobacter xylinum 117.50 x 107 cfu / ml, the value of pH 3.82, sugar content 9.67. The results of the organoleptic assessment of flavor and taste showed the highest panelist favorites level in Kombucha chocolate powder that is 3.07 (very good) and 3.47 (very good).