bluuebunny/crossref_metadata_2025 huggingface dataset:
Potential threat to Polish lakes and reservoirs from contamination by objects of environmental flood risk
Authors: Bedryj Marta , Dumieński Grzegorz , Tiukało Andrzej
Published: January 2019

There is a potential threat to lakes and water reservoirs from contamination released due to the flooding of objects that can pose an environmental risk (cemeteries, sewage treatment plants, sewage pumping stations, landfills and industrial plants) located in areas prone to inundation. The analysis covered large lakes and reservoirs (those with the area of over 50 ha), identified as bodies of surface water located in areas potentially affected by flooding of high (10%), medium (1%) and low (0.2%) probability of occurrence. These areas are presented on flood hazard maps and flood risk maps. The results of analyses revealed that the scale of potential threat to Polish lakes, defined as bodies of surface water, with contamination from objects of environmental flood risk is marginal, however, in the case of reservoirs – significant.
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

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

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

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

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

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

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

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

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

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

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

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

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.
Neutral Difference System and its Nonoscillatory Solutions
Authors: Pasáčková Jana
Published: January 2019

The paper deals with a system of four nonlinear difference equations where the first equation is of a neutral type. We study nonoscillatory solutions of the system and we present sufficient conditions for the system to have weak property B.
About Distributed Control in Model of Testosterone Regulation
Authors: Pinhasov Olga
Published: January 2019

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

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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

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
Musik Bandar Dalam Perspektif Seni Budaya Nusantara
Authors: Martarosa Martarosa
Published: January 2019

Musik bandar merupakan salah satu jenis musik yang dikategorikan sebagai hasil dari proses apropriasi musical, yaitu penyesuaian dan penerimaan antara budaya yang datang dengan budaya lokal. Artikel ini bertujuan untuk memaparkan proses pembentukan musik bandar dalam aspek-aspek apropriasi musikal. Dalam hal ini kehadiran musik bandar diwujudkan dari sebuah peradaban pluralistis yaitu, proses penyebaran dan interaksi dari berbagai unsur dapat diterima dan dimasukkan ke dalam proses pembentukan budaya. Jenis musik bandar tersebut meliputi: musik gamat, musik ronggeng, musik ghazal, musik dondang sayang, musik keroncong, dan musik gambang kromong.
Modifikasi Angklung Sunda
Authors: Upaja Budi Dinda Satya
Published: January 2019

Artikel ini menguraikan hasil modifikasi terhadap angklung yang telah dilakukan oleh para seniman Sunda. Metode lintas disiplin dengan pendekatan organologis digunakan dalam penelitian ini. Data diperoleh dengan pengamatan terhadap proses modifikasi yang telah dilakukan pada angklung. Berdasarkan penelitian dapat disimpulkan bahwa upaya-upaya modifikasi yang dilakukan terhadap angklung merupakan langkah pengembangan yang meliputi tangga nada, teknik permainan, bahan, bentuk, serta ornamen atau aksesoris. Modifikasi ini merupakan upaya termutakhir yang telah berhasil dilakukan oleh para seniman Sunda sampai saat ini.
Karakteristik Bentuk Musik Melayu Di Kota Palembang Pada Lagu Melati Karangan
Authors: Kautzar Awang
Published: January 2019

Artikel yang bertujuan membahas secara spesifik bagaimana bentuk lagu tradisi yang bernuansa Melayu. Tujuan tulisan ini untuk memberikan wawasan dan informasi tentang bentuk musik Melayu di Palembang. Penelitian ini menggunakan metode deskriptif dengan bentuk penelitian kualitatif. Pendekatan penelitian menggunakan pendekatan musikologi. Sumber data yang di dapat dalam penilitian adalah narasumber yaitu Misral dan Irsyad Elbana. Teknik pengumpulan data yang digunakan berupa pengumpulan data observasi, wawancara, dan dokumentasi. Teknik menguji keabsahan data yang di gunakan triangulasi. Hasil penelitian ini yaitu pada melodi utama atau melodi pada vokal yang terdapat beberapa kali pengulangan, frase pertanyaan dan frase jawaban juga Karakteristik lirik dan makna pada lagu tradisional Melayu di Palembang. Salah satu lagu tradisional di Palembang yaitu lagu Melati Karangan, lagu ini merupakan tanda atau identitas Palembang yang selalu menghormati sosok seorang wanita, pertunjukan dengan musik Melayu pada lagu Melati Karangan biasanya disajikan dalam upacara adat pernikahan. Tatacara penghormatan kepada perempuan Melayu di Palembang yang merepresentasikan sopan santun dalam proses pernikahan, merupakan bagian dari identitas budaya Melayu di Kota Palembang.
Ladrang Sobrang Laras Slendro Patet Nem
Authors: Teguh Teguh
Published: January 2019

Artikel ini bertujuan untuk mengetahui struktur gending Ladrang Sobrang dan cara pengrawit dalam menentukan garap untuk memainkannya. Sobrang adalah salah satu nama gending yang terdapat pada karawitan gaya Surakarta. Gending ini dikelompokkan pada gending alit, berbentuk ladrang, berlaras slendro, dan berpatet nem. Gending ini tergolong jenis ladrang ageng, karena terdiri dari empat cengkok atau empat gong-an. Dari keempat cengkok ini tidak ada satupun yang diikuti vokal. Hal ini dapat dipahami bahwa gending ini mengutamakan permainan instrumen ricikan. Data diperoleh melalui pengamatan pada penyajian gending ini dan wawancara dengan para ahli karawitan. Setelah dilakukan analisis pada kekuatan nada dan analisis garap, dapat disimpulkan bahwa Ladrang Sobrang tergolong gending yang rumit dan sulit karena terdiri dari dua patet yaitu patet sanga dan manyura, mempunyai permainan kendang khusus atau pamijen, dan mempunyai pola tabuhan kenong goyang.
Uma Bienal sem coesão interna
Authors: Hirszman Maria
Published: January 2019

A 33ª Bienal de São Paulo propôs uma diluição do papel da curadoria ao convidar 7 artistas-curadores para conceberem diferentes núcleos expositivos. Complementando essas mostras, o curador-geral Gabriel Pérez-Barreiro preparou 12 mostras individuais. Ao analisar o poder curatorial descentralizado em diferentes exposições e abordagens, sob o comando de um grupo heterogêneo de propostas, a resenha desenvolve o argumento de que esta edição da Bienal apresentou reduzido grau de articulação interna e falta de coesão entre as diferentes propostas apresentadas. A autora argumenta que a falta de uma maior tensão unificadora do conjunto acabou por levar a uma dispersão da relação direta entre o espectador e a obra de arte, exigindo um esforço maior por parte do público.
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.
Antioxidant Activity of Ethanol Extract Combinations of Jeruk Purut Leaf (Citrus hystrix Dc.) and Jati Belanda Leaf (Guazuma ulmifolia L.)
Authors: Nadhira Arina Nisyya , Maharani Safira , Zatsyia Fransisda Aulia , Trisharyanti Ika , Kusumowati Dian
Published: January 2019

Ethanol extracts of Guazuma ulmifolia L. and Citrus hystrix Dc., have a strong antioxidant activity. The purpose of this research is to determine the antioxidant activity of ethanol extracts combination of Guazuma ulmifolia L. (jati belanda leaf) and Citrus hystrix Dc (jeruk purut leaf). Determination of antioxidant activity was done by DPPH method (1,1-diphenyl-2picrylhydrazil) using UV-Vis spectrophotometer with maximum wavelength 516.5 nm. The antioxidant activity of jeruk purut leaf is smaller than jati belanda leaf (IC50 48.70 mg/mL for jeruk purut leaf, IC50 35.92 mg/mL for jati belanda leaf). Antioxidant activity of the two extracts combination was lower than the antioxidants of each extract (without combination). The low antioxidant activity of both extract combination due to the antagonist activity as the interaction of the content of each extract so that the extract combination showing a weaker antioxidant activity. At the concentration of each different comparison of each extract combination volume shown no difference with P-value > 0.05 (P-value: 0.99).
Synthesis and Bioactivity of 3-(2,4-Dichlorophenyl)-5-(4-Hydroxy-3-Methoxyphenyl) Pyrazoline
Authors: Khotimah Nurul , Rahmadani Agung , Rahmawati Dewi , Ardana Mirhansyah
Published: January 2019

Pyrazoline is a five-ring heterocyclic compound having 3 carbon atoms and 2 nitrogen atoms known to have some biological activity. This study aims to synthesize 3-(2,4-dichlorophenyl)-5-(4-hydroxy-3-methoxyphenyl) pyrazoline using 2â€™,4â€™-dichloro-4-hydroxy-3-methoxy chalcone and hydrazine. Synthesis was performed by reflux method at 80oC for 7 hours. The synthesis compounds were characterized by structural elucidation techniques. From the synthesis results obtained compound 3-(2,4-dichlorophenyl)-5-(4-hydroxy-3-methoxyphenyl) Pyrazoline is pale yellow powder with 84%yield. The result of antioxidant activity test by 2,2-diphenyl-1-picrylhydrazyl (DPPH) showed that the compound had very strong antioxidant activity, Antibacterial test by diffusion method to use paper disk showed that the compound had antibacterial activity against Gram positive bacteria (S.aureus) and Gram negative bacteria (E.coli) and toxicity test by Brine Shrimp Lethality Test (BSLT) showed that the compound had toxicity.
Synthesis and Characterization of Methyl Amino Polystyrene as Resin Material of Chromatography
Authors: Herman Herman , Anggraeni Anni , Mutalib Abdul , Bahti Husein H.
Published: January 2019

Ion-exchange chromatography has been widely used in various separation process and purification. Commercial ion-exchange resin mostly uses polystyrene as stationer phase. This study reviewed the synthesis of cation-exchange resin with polystyrene as starting material. Polystyrene must be activated in order to make one of aromatic carbon chains being able to be binding with acetamide n-hidroxymethyl electrophilic. Polystyrene activation was conducted through two stages, i.e. (1) the formation of amidomethyl polystyrene (AMDP), and followed with (2) elimination of acyl group. The activation of polystyrene generated white methylamino polystyrene (MAP) resin, of which its characterization used spectrophotometry UV, Fourier Transform-Infrared (FTIR), and density of MAP resin confirmed by pycnometer. The results showed that the characterization of FTIR and spectrophotometer UV for AMP exhibited forming amino propyl group at 3374.52 cm-1 with ?max 230 nm due to N–H bond; and the average of density of AMP resin sample was 1.7158 g/mL.
Komunitas Makrozoobentos di Sungai Gua Pintu Ngalau pada Kawasan Karst di Sumatera Barat
Authors: Mar’i Husnul , Izmiarti Izmiarti , Nofrita Nofrita
Published: January 2019

Pintu Ngalau cave is flowed by river from irrigated rice fields that flows into the cave. This cave has a source of organic matter derived from bats and swallow dirts, litter that falls on enterance of the cave and the organic material carried by the flow of the river. The study on the macrozoobenthos communities of river in Pintu Ngalau Cave has been conducted from October until November 2016. The study used survey method, where stratified random sampling was applied in three zones (light zone, dim zone and dark zone) at study site. Macrozoobenthos samples was collected by surber net. This study also measured the physic-chemical of water. The results showed the composition of macrozoobenthos in the Pintu Ngalau cave river consisted of 43 genera i.e Gastropods (2 genera), Hirudinea (2 genera), Insects (36 genera) and Oligochaetas (3 genera). Total density of macrozoobenthos in this site was 2100 ind/m2 and the highest density was found in dark zone. The highest total relative density (KR total=79,89%) on genus level at every zone was Hydropsyche. Diversity index of macrozoobenthos was classified as medium (H'=2.68) with evenness distribution was evenly (E=0.61) and no dominant genus (C=0.14). The existence of macrozoobenthos was not influenced by light intensity, but instead was more influence by the condition of the substrate and the flow of water in the cave.
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).
Kajian Pengawakan Kapal Tonase Kurang Dari GT 7 Pada Wilayah Perairan Pedalaman Dalam Meningkatkan Keselamatan Pelayaran, Studi Kasus: Sampit
Authors: Malisan Johny
Published: January 2019

Strategi pengembangan transportasi air di Pulau Kalimantan merupakan upaya untuk menyusun sistem transportasi air yang terpadu, terintegrasi, demi mewujudkan transportasi yang berkelanjutan, dan berwawasan keselamatan dan pelestarian lingkungan. Pengawakan kapal merupakan salah satu unsur yang meskipun kecil namun memiliki peran penting dalam mewujudkan transportasi berwawasan keselamatan. Oleh karena itu, pemerintah perlu memfasiltiasi penyediaan SDM pelayaran berkualitas dan kompeten. SDM demikian harus di antisipasi melalui penyelenggaraan diklat berbasis kompetensi kerja kepelautan yang dikelola secara profesional. Pengawakan kapal perlu menjadi perhatian juga selain jenis sertifikat, jumlah awak kapal, faktor lingkungan kerja, serta waktu kerja termasuk yang beroperasi di perairan pedalaman. PP Nomor 7 tahun 2000 tentang kepelautan, tidak mengatur tentang kualifikasi keahlian dan keterampilan awak kapal motor dengan ukuran kurang dari GT 7. Namun demikian, hal ini perlu dikaji lebih lanjut agar dapat menjadi pegangan terutama bagi aparat Pemerintah Daerah agar mampu melaksanakan tugas pembinaan dan pengawasan yang lebih ketat lagi sehingga resiko kecelakaan dapat dikurangi dan juga agar seluruh daerah mempunyai keseragaman dalam mengatur pengawakan kapal dengan ukuran di bawah GT.7 yang berlayar di perairan pedalaman. Kajian ini dilakukan dengan menganalisis aspek-aspek pengendalian kapal, kenavigasian, sistem pemuatan, pemahaman dan penguasaan alat-alat keselamatan. Hasil analisis menunjukkan terjadi gap dengan yang sesungguhnya sehingga perlu pembinaan dan perbaikan keseluruhan sistem terse but oleh Otoritas Keselamatan dan Pemerintah Daerah.
Pengaruh Antrean Pelayanan Penerbangan Terhadap Pengguna Avtur di Bandara Soekarno Hatta
Authors: Susetyadi Ari
Published: January 2019

Bandar udara Soekarno Hatta yang terletak di area metropolis ibukota Indonesia merupakan bandar udara tersibuk nomor 12 (duabelas) dunia. Bandar udara dengan fasilitas 2 (dua) runway ini setiap jamnya hams melayani take off dan landing ratarata hingga 52 penerbangan setiap jamnya. Kepadatan ini tentunya menimbulkan antrean pelayanan. Berdasarkan hasil pengolahan data dan analisis dapat disimpulkan bahwa pada umumnya, setiap pesawat udara menghabiskan avtur sebanyak 50 liter per menit. Apabila sebuah pesawat udara hams mengalami antrian selama 10 menit, maka pesawat tersebut mengalami kerugian sebanyak Rp. 4.922.500.
Kinerja Dan Permintaan Pergerakan Transportasi Gugus Pulau Trans Maluku
Authors: Sihaloho Antonius , Jinca M Yamin
Published: January 2019

Permasalahan transportasi Trans-Maluku terkait dengan persebaran permukiman, konektivitas, integrasi antarmoda dan ketimpangan pembangunan transportasi. Interaksi ekonomi hinterland dan konsep keterpaduan transportasi jalan dengan penyeberangan sebagai jembatan penghubungjaringan jalan belum terlaksana dengan baik. Pembahasan bertujuan untuk menemukenali tingkat kepuasan masyarakat terhadap kinerja transportasi dalam mendukung pengembangan, percepatan dan perluasan ekonomi Provinsi Maluku dalam konsep MP3EI, menggunakan pendekatan kuantitatif dan kualitatif dengan metode CSI (Costumer Satisfaction Indeks). Kinerja pelayanan transportasi masih jauh dari Standar Pelayanan Minimum (SPM). Indikator kinetja aspek sosial transportasi dan lingkungan, menunjukan ketidak puasan masyarakat, terutama indikator polusi perairan pelabuhan, kenyamanan dan kelancaran, keselamatan transportasi keterpaduan/konektisitas dan aksesibilitas.
Kajian Pemanfaatan Reception Facilities di Pelabuhan Makassar
Authors: Utama Tri Kusumaning , Puriningsih Feronika Sekar
Published: January 2019

Dalam Pasal 235 Undang Undang Nomor 17 Tahun 2008 Tentang Pelayaran disebutkan bahwa otoritas pelabuhan, unit penyelenggara pelabuhan, badan usaha pelabuhan dan pengelola terminal khusus wajib menanggulangi pencemaran yang diakibatkan oleh pengoperasian pelabuhan dan bertanggung jawab menyediakan fasilitas penampungan limbah. Maksud penelitian ini untuk mengevaluasi seberapa jauh pemanfaatan Reception Facilities di Pelabuhan Makassar dilihat dari aspek legalitas, sarana, prasarana, SDM dan pengawasan kapal. Penelitian ini menggunakan analisis deskriptif kuantatif menggunakan pendekatan Importance Analysis dan Performance Analysis. Dari hasil penelitian dikemukakan bahwa di Pelabuhan Makassar belum tersedia fasilitas penampungan limbah kapal, drum-drum yang berisi limbah kapal berupa oli diambil oleh perusahaan khusus yang mendapat ijin untuk mengambil limbah kapal, atau drum itu dibawa ke pangkalan sendiri untuk diolah maupun digunakan sendiri.
Evaluasi Tingkat Kepuasan Pelayanan Embarkasi Dan Debarkasi Penumpang Kapal Pelni di Pelabuhan Tenau Kupang
Authors: Yuliani Apri
Published: January 2019

Kajian ini dilatarbelakangi dengan pentingnya menjaga dan meningkatkan kepuasan penumpang terhadappelayanan embarkasi dan debarkasi penumpang. Kajian ini bertujuan untuk mengevaluasi kepuasanpenumpang terhadap pelayanan embarkasi dan debarkasi penumpang kapal Pelni di Pelabuhan TenauKu pang. Dengan menggunakan metode CSI dan IP A, diketahui bahwa kinerja pelayanan embarkasipenumpang kapal masih harus mendapatkan perhatian khusus karena nilainya masih berada di bawahstandar pelayanan (74,60% ). Sedangkan kinerja pelayanan debarkasi penumpang kapal berada pada batasminimal standar pelayanan (79,54%). Terdapat beberapa aspek pelayanan yang perlu diperbaiki gunameningkatkan kepuasan pelayanan embarkasi dan debarkasi penumpang kapal Pelni di Pelabuhan TenauKu pang.
Perbandingan Gaya Propulsi Terhadap Berat Pada Prototipe Kapal Bersayap A2c Tipe B Konfigurasi Lippisch Saat Hydro Planing
Authors: Syamsuar Sayuti
Published: January 2019

Permasalahan kelebihan berat menjadi hal yang perlu mendapat perhatian serius saat fabrikasi suatu prototipe Kapal Bersayap di industri material komposit. Untuk prototipe Kapal Bersayap baru A2C kapasitas (1 - 2) orang tipe B dan konfigurasi Lippisch dengan sayap reverse delta dan airfoil Clark-Y untuk mengetahui keseimbangan gaya-gaya padahydro planing pada sumbu Benda. PerbandinganThrust per Berat sekitar (2 : 5) digunakan pada prototipe Kapal Bersayap baru A2C kapasitas (1 – 2) orang. Analisis yang digunakan, prosedur pengambilan data dari gaya-gaya melalui perhitungan teoritikal dan pengukuran menggunakan alat ukur di laboratorium, adalah untuk mengetahui besarnya gaya hambat hidrodinamika yang berpusat pada titik pusatbuoyance, gaya angkat aerodinamika pada titik pusat tekanan sayap, gaya Propulsi dan gaya berat pada titik pusat gravitasi di tata acuan koordinat sumbu Benda. Sehingga diperoleh hasil akhir bahwa prototipe Kapal Bersayap A2C layak terbang hanya dengan 1 Pilot.
ANALYSIS OF CHANGES IN AFRICAN SWINE FEVER VIRUS GENETIC STRUCTURE AND BIOLOGICAL PROPERTIES DURING ADAPTATION TO CONTINUOUS CELL CULTURE
Authors: Mazloum Ali , Zinyakov N. G. , Pershin A. S. , Shevchenko I. V. , Zhukov I. Yu. , Fedoseyeva D. N. , Sharypova D. V. , Igolkin A. S. , Vlasova N. N.
Published: January 2019

Functions of many African swine fever virus genes and multigene family members have not been yet understood. In particular, no virus genes directly associated with pig virulence have been identifed. Identifcation of such genes will enable preparation of deletion mutant ASF virus strains as well as development and testing of pilot safe vaccines based on the said virus strains. Comparative analysis of the virus biological characteristics and detection of diﬀerences in its genome structure aﬀecting certain phenotypic features is a main method used for the virus basic pathogenicity and immunogenicity examination. The most interesting and eﬀective approach to addressing this problem is an analysis of changes in the gene structure during ASF virus adaptation to replication in continuous cell culture. The said factors have made continuous cell culture-adapted variant ASF virus preparation necessary. Variant viruses with modifed biological features were prepared during adaptation of ASFV Odintsovo 02/14 isolate to replication in CV-1 cell culture. Lethality level was 16.7% when pigs were infected with adapted variant virus at 30th passage and survived animals became resistant to reinfection with homologous virulent ASFV Arm07 isolate. It should be noted that the virus passage in non-permissive cell culture up to 30 serial passages did not result in changes in its genotype; however, a large 3,000 bp deletion similar to that one in continuous Vero-cell culture-adapted BA71V strain genome appeared in right terminal variable region of the genome.
HUMAN RESOURCES CAPACITY OF NATIONAL VETERINARY SERVICES IN RUSSIAN FEDERATION TERRITORIAL SUBJECTS
Authors: Shibayev M. A. , Klinovitskaya I. M. , Oganesyan A. S. , Belchikhina A. V. , Karaulov A. K.
Published: January 2019

The paper presents the analysis results of basic quantitative characteristics of national veterinary service human resources as at 2017. The analysis was made both in general for the subject veterinary services and for their separate organizational levels: regional, local, laboratory as well as for the units, involved into the state veterinary surveillance on the regional level. The data about available number of veterinarians and stafng levels of veterinary institutions in the territorial subjects are discussed. These data suggest that the number of veterinarians correlates with the human and animal populations, as well as with the number of municipal entities and the volumes of livestock products manufactured. Notwithstanding the diverse peculiarities of the RF regions, the majority of them suﬀer from an actual defcit of veterinarians in the local and laboratory institutions. As of 2017, the average age of veterinarians in the RF is 40–45. The analysis of the RF average salaries showed that veterinarians of local and laboratory levels earn about 24 thousand rubles per month, which is 30% lower than the average level in Russia and almost twice lower than the salaries of regional veterinarians and ofcial veterinary inspectors. The study results are also indicative of a sufciently high number (about 72%) of veterinarians with a higher vocational education in RF Subject institutions, but at the same time not all of them are covered by advanced training programs.
Aspek Yuridis Penukaran Tanah Wakaf Di Indonesia
Authors: Mafazi Agung
Published: January 2019

Perkembangan Wakaf Tanah di Indonesia dari tahun ketahun terus mengalami peningkatan yang cukup signifikan, pada tahun 2016 luas tanah yang di wakafkan mencapai angka lebih dari 4 milyar M2. Hal ini jelas menjadi perhatian penting bagi pemerintah untuk dapat mengelolanya dengan baik, agar tidak timbul permasalahan di kemudian hari. Niat yang mulia dari Wakif akan menjadi permasalahan apabila tidak dinaungi dengan payung hukum yang jelas dan dapat dilaksanakan. Di Indonesia sebenarnya telah ada payung hukum yang jelas tentang masalah wakaf, diantaranya Undang-Undang Nomor 41 tahun 2004 tentang Wakaf, Peraturan Pemerintah Nomor 42 tahun 2006 tentang pelaksanaan Undang-Undang Nomor 41 tahun 2004 dan Peraturan-peraturan Badan Wakaf Indonesia yang mengatur pewakafan di Indonesia. Memiliki payung hukum dan lembaga khusus yang menangani wakaf ternyata tidak mampu membuat proses pewakafan menjadi mudah bahkan terkesan rumit dan panjang. Adanya pembagian kewenangan pemberian ijin ketingkat daerah akan menjadi solusi dalam menyelesaikan permasalah yang dianggap tidak efektif dan efisien.
Application of model-based design tool X2C in induction machine vector control
Authors: Lopac Nikola , Šegon Gordan , Bulić Neven
Published: January 2019

Open source software tools for model-based design of embedded control systems represent a new method for rapid development and testing of advanced control structures in modern electric drives. The new concept of one of those tools, X2C, is presented in this paper, and in order to evaluate its performance in the development of complex control systems, it is applied to implement induction machine vector control. Based on the simulation model of the drive developed in PLECS, the parameters of the controllers were determined. The algorithm for the vector control of
the induction machine was developed in X2C, implemented on the digital signal processor and applied to the real system. The system was tested during the no-load acceleration, deceleration, and reversing of the motor, while measuring the electrical and mechanical variables. Finally,
the quantitative comparison of the experimental results and the results
obtained by the equivalent simulations, based on the Integral Squared Error criterion, revealed that these results were well matched. This finding suggested that the control system was successfully implemented, thereby confirming the effectiveness of X2C tool in this particular type
of application. With this work it has been shown that a transition from
simulation to actual environment is rapidly achieved, with a simple verification of implemented methods accompanying the process. Realization of this work is a step forward in the utilization of open source software packages for implementation of induction machine vector control with the purpose of rapid verification of simulation models.