bluuebunny/crossref_metadata_2025 huggingface dataset:
A method for the evaluation of the response of torque transducers to dynamic load profiles
Authors: Oliveira Rafael Soares , Machado Renato R. , Lepikson H. , Fröhlich Thomas , Theska René
Published: April 2019

The traceability of the torque quantity finds a gap when there is a regime with torque variation rates. The traditional calibration methods define the references to be on the static regime, with null torque rates. This paper presents a method for providing torque traceability to rotating sensors under high torque variation rates. The principle of applying acceleration pulses to rotating shafts, with mounted reference discs with known mass moments of inertia thereon, is presented herein, followed by a description of sequential proceedings for obtaining an analysis in the time domain. The development of the uncertainty budget is also discussed. Demonstrative experimental data is used in order to ratify the principle and to maintain a qualitative approach to the theoretical description of these methods. The research gives a very good idea of the necessary different future approaches to guarantee traceability for mechanical quantities.
EFEKTIVITAS PENGGUNAAN MEDIA PAPAN WAKTU PADA PEMBELAJARAN PENGHITUNGAN WAKTU BAGI SISWA KELAS III SEKOLAH DASAR
Authors: Bahtiar Reza Syehma
Published: April 2019

Tujuan penelitian ini adalah untuk mengetahui hasil belajar siswa setelah menggunakan media papan waktu dalam pembelajaran penghitungan waktu. Penelitian ini merupakan jenis penelitian deskriptif kualitatif. Instrumen yang digunakan dalam penelitian ini adalah tes hasil belajar, observasi, dan angket. Berdasarkan hasil penelitian yang telah dilakukan bahwa hasil belajar siswa dikatakan tuntas secara klasikal karena presentase yang diperoleh lebih dari kriteria ketuntasan hasil belajar klasikal yaitu sebesar 83,79 % dengan jumlah siswa sebanyak 31 siswa yang tuntas belajar dan 6 siswa yang tidak tuntas belajar. Observasi aktivitas guru dalam mengelola pembelajaran penghitungan waktu dengan menggunakan media pembelajaran papan waktu dikatakan sangat baik karena hasil yang diperoleh sebesar 92,5. Observasi aktivitas siswa dalam pembelajaran penghitungan waktu dengan menggunakan media pembelajaran papan waktu dikatakan sangat baik karena presentase yang diperoleh sebesar 90 %. Sedangkan respon yang diberikan siswa saat menggunakan media pembelajaran papan waktu dikatakan positif karena presentase yang diperoleh sebesar 82,64 %.
PENGEMBANGAN MODUL TEMATIK INTEGRATIF BERBASIS CHARACTER BUILDING
Authors: Yulianti Yulianti
Published: April 2019

Proses pembelajaran di SD/MI telah menggunakan kurikulum 2013 namun belum didukung bahan ajar berupa printed text selain buku dari pemerintah dan LKS yang mengedepankan karakter. Penelitian ini bertujuan untuk menghasilkan modul tematik integratif dengan pendekatan kurikulum 2013 berbasis character building pada tema 9 subtema 3.

Modul  dikembangkan  menggunakan Model Borg and Gall, dengan 10 langkah namun peneliti hanya menggunakan 5 langkah. Uji validasi dengan ahli materi, bahasa dan media. Subjek uji coba dalam penelitian ini adalah 1 orang guru SD dan 10 siswa SD kelas 4. Teknik pengumpulan data menggunakan angket. Teknik analisis data menggunakan data kuantitatif dan data kualitatif.

Hasil penelitian modul layak digunakan, berdasarkan  penilaian ahli materi memperoleh skor 88,51%, ahli bahasa  88,89%, ahli media 94,44% dan peer reviewer 79,41%. Modul praktis digunakan dengan perolehan skor 91,72%, dan efektif digunakan dengan perolehan skor rata-rata 83,75%. Diharapkan untuk pengguna modul tematik-integratif berbasis character building dapat dijadikan sebagai penunjang bahan ajar.
Hubungan Mata Pelajaran PPKn Terhadap Peningkatan Karakter Siswa
Authors: Nono Godeliva Umbu , Hermuttaqien Bhakti Prima Findiga , Wadu Ludovikus Bomans
Published: April 2019

Tujuan dari penelitian ini adalah untuk mengetahui apakah  ada hubungan mata pelajaran PPKn tehadap peningkatan karakter siswa dan untuk menegtahui bagimana hubungan mata pelajaran PPKn terhadap peningkatan karakter siswa di SMA. Dalam penelitian ini peneliti menggunakan penelitian kuantitatif dengan jenis korelasi. Teknik pengambilan sampel menggunakan Teknik random sampling dengan menggunakan instrument angket. Berdasarkan hasil uji pada tabel Model Summary diketahui nilai R Square sebesar 0,616, yang artinya terdapat hubungan mata pelajaran PPKn dengan peningkatan karakter siswa sebesar 61,6%. Dari hasil uji ANOVA diketahui tingkat signifikansi 0,000 yang nilainya jauh lebih rendah dari nilai probabilitas > 0,05. Berdasarkan hasil uji pada tabel Model Summary diketahui nilai R Square sebesar 0,616, yang artinya bahwa 61,6% mata pelajaran PPKn berpengaruh pada peningkatan karakter siswa. Hasil uji ANOVA diketehui tingkat signifikansinya 0,000 yang artinya mata pelajaran PPKn mempunyai hubungan yang signifikan terhadap peningkatan karakter siswa. Sehingga dapat disimpulkan bahwa mata pelajaran PPKn mempunyai hubungan yang sangat signifikan terhadap peningkatan karakter siswa.
Motilitas dan viabilitas spermatozoa ayam kampung pada suhu 5°c menggunakan pengencer dan lama simpan yang berbeda
Authors: Woli Selvinus Lawu , Kusumawati Enike Dwi , Krisnaningsih Aju Tjatur Nugroho
Published: April 2019

Abstrak

Penelitian ini dilakukan untuk mengetahui motilitas dan viabilitas spermatozoa ayam kampung pada sushu 5oc menggunakan pengencer dan lama simpan yang berbeda. Metode yang digunakan dalam penelitian ini adalah penelitian laboratorium menggunakan Rancangan Acak Lengkap (RAL) Faktorial. Variabel yang diamati pada penelitian ini adalah Jenis pengencer ringer lactat solution dan air kelapa dan Lama simpan 0. 3, 6, 9, 12, 15 ,18, 21, 24, 27, 30 dan 1-10 ulangan. Hasil analisis data yang diperoleh tiddak ditemukan pengaruh nyata yang sangat signifikan. Berdasarkan hasil penelitian dapat disimpulkan bahwa penggunaan pengencer ( kontrol ) tanpa pengencer, ringer lactat solution dan air kelapa dan lama simpan ( 0 , 3 , 6 , 9 , 12 , 15 , 18 , 21 , 24 , 27 , 30 ) yang berbeda  tidak ditemukan pengaruh motilitas dan viabilitas yang nyata terhadap kualitas spermatozoa ayam kampung pada suhu  50C dan dapat disimpulkan juga bahwa kualitas spermatozoa tanpa pengencer lebih  baik daripada pengencer ringer lactat solution dan air kelapa .Sehingga dalam studi ini kualitas spermatozoa tidak dapat pengaruh yang nyata ( P>0.05 ) .

 

Abstract

This study was conducted to know sperm motility and viability of kampung chicken at 5oC uses different of diluent and strorage time. Methods used in this study was experimental laboratories using completely random design of factorials. Variable of this study was sperm motility and viability. Treatment dilvent used was (control), ringer lactat solution and coconut water.Which was conducted from 0 , 3 , 6 , 9 , 12 , 15 , 18 , 21 , 24 , 27 , 30 hours .Treatment was repeated 10 times .The results of the analysis were the data collected from the study found not signifikan different.Based on the research done it can be concluded that the use of diluent (control) without diluent, ringer lactat solution and coconut water and long save (0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30) is not found the influence of viaabilitas motility and a clear on the quality of spermatozoa cement chicken at a temperature of 50C and it can be concluded also that the quality of spermatozoa without diluent better than diluent ringer lactat solution and coconut water. So that in this study the quality of spermatozoa could not real impact (P> 0.05).
NUS-TRICK (MUSLIHAT NUSANTARA) PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS GAME TERHADAP PEMAHAMAN KONSEP POLA BILANGAN
Authors: Ambar Setyomurni Rizky , Putra Ridho Pratama , Qomariyah Luluk
Published: April 2019

Trend in International Mathematics and Science Study (TIMMS) yang dilansir oleh Puspendik tahun 2015 menyatakan bahwa secara umum siswa Indonesia lemah di semua aspek konten maupun kognitif, baik untuk matematika dan sains. Inovasi media pembelajaran akan memberikan dampak yang berbeda pada peserta didik dengan semakin berkembangnya teknologi sehingga dapat membuat proses pembelajaran yang inovatif, kreatif, dan interaktif. Adanya bantuan komputer dan teknologi informasi, maka kualitas pendidikan dapat meningkat dan mempermudah siswa dalam menerima pelajaran. Rendahnya pengetahuan generasi saat ini akan budaya nusantara menjadikan budaya kita sering diakui oleh negara lain. Game menjadi salah satu upaya dalam mengenalkan budaya nusantara dan juga ilmu pengetahuan para pemainnya. Ide ini mengangkat berbagai level yang sesuai dengan indikator pencapaian yang berdasarkan pada KI dan KD yang tertera pada silabus. Rumusan masalah yakni mengenai bagaimana pengembangan game serta penerapannya dalam pembelajaran. Metode penelitian yang digunakan adalah ADDIE (analysis, design, development, implemetation, evaluation). Teknik pengumpulan data menggunakan teknik observasi dan angket. Hasil penilaian oleh ahli materi dan media terhadap game yakni diperoleh rata-rata 82% sedangkan hasil respon guru dan peserta didik diperoleh rata-rata 78.5%. Kesimpulan dalam penelitian ini adalah bahwa game layak digunakan dengan pengembangan metode ADDIE dan layak untuk diterapkan sebagai media pembelajaran
RIVAS CARMONA, María del Mar; VEROZ GONZÁLEZ, María Azahara (eds.) Agroalimentación: lenguajes de especialidad y traducción. Granada: Comares Interlingua, 2018, 176 pp., ISBN 978-84-9045-702-3
Authors: León Alonso Paula María
Published: April 2019

La reseña señala los puntos principales que figuran en el volumen en cuestión, con citas de los artículos y conclusiones extraídas.
Searching for the Routes of Philosophy: Marsilio Ficino on Heraclitus
Authors: Steiris Georgios
Published: April 2019

Marsilio Ficino is well known for his efforts to expand the philosophical canon of his time. He exhibited great interest in Platonism and Neoplatonism, but also endeavoured to recover understudied philosophical traditions of the ancient world. In his Theologia platonica de immortalitate animorum, he commented on the Presocratics. Ficino thought of the Presocratics as authorities and possessors of undisputed wisdom. This article seeks to explore the way in which Ficino treated the philosophy of Heraclitus in the Theologia platonica in order to formulate his own philosophical ideas.
In Memoriam Marc Geoffroy (1965-2018)
Authors: JANSSENS Jules
Published: April 2019

This Memoriam shows how the scholarly work of Marc Geoffroy largely corresponds with the ideal of the present journal, i.e. the study of various areas of knowlege transfer from the Late Antiquity ot the Early Modern period, covering the Middle East and the Mediterranean basin, while paying special attention to philological, philosophical, scientific, cultural and religious fields of research.
Why William of Moerbeke Is Not the Author of ‘His’ 'Geomantia' (And Why That Does Not Make the Text Less Interesting)
Authors: BEULLENS Pieter
Published: April 2019

The intention of this note is to assess the current tendency to view the Geomantia as a genuine work by William of Moerbeke. While the attribution in the colophons is accepted at face value, other lines of enquiry have remained unexplored. This note advocates the inclusion of linguistic elements and the study of the transmission's cultural background into the debate.
Jules L. Janssens, An Annotated Bibliography on Ibn Sīnā. Second Supplement (1995-2009), Arizona Center For Medieval Studies, Temple, AZ 2017 (Medieval and Renaissance Texts and Studies, 439), XVI + 736 PP., ISBN 9780866984874
Authors: PUIG MONTADA Josep
Published: April 2019

Review of:Jules L. Janssens, An Annotated Bibliography on Ibn Sīnā. Second Supplement (1995-2009), Arizona Center For Medieval Studies, Temple, AZ 2017 (Medieval and Renaissance Texts and Studies, 439), XVI + 736 PP., ISBN 9780866984874.
María Jesús Soto-Bruna (ed.), Causality and Resemblance. Medieval Approaches to the Explanation of Nature, Georg Olms Verlag, Hildesheim–Zürich–New York 2018 (Europaea Memoria, Reihe I: Studien, 127), 182 PP., ISBN 9783487156866
Authors: YARDLEY Brett
Published: April 2019

Review of:María Jesús Soto-Bruna (ed.), Causality and Resemblance. Medieval Approaches to the Explanation of Nature, Georg Olms Verlag, Hildesheim–Zürich–New York 2018 (Europaea Memoria, Reihe I: Studien, 127), 182 PP., ISBN 9783487156866.
Dislocation rates of postoperative airway exchange catheters. A prospective case series of 200 patients.
Authors: Roten Fredy-Michel , Steffen Richard , Kleine-Brueggeney Maren , Greif Robert , Wipfli Marius , Arnold Andreas , Fischer Henrik , Theiler Lorenz
Published: April 2019

BACKGROUND: The dislocation rate of oral versus nasal airway exchange catheters (AEC) in the postoperative care unit (PACU) are unknown. Our aim was to establish dislocation rates and to assess the usefulness of waveform capnography to detect dislocation.
METHODS: In this non-randomized, prospective observational trial at the University Hospital Bern, Switzerland, we included 200 patients admitted to PACU after extubation via AEC, having provided written informed consent. The study was approved by the local ethical committee. AEC position was assessed by nasal fiberoptic endoscopy at beginning of PACU stay and before removal of the AEC. Capnography was continuously recorded via the AEC. Additional measurements included retching and coughing of the patient, and re-intubation, if necessary.
RESULTS: Data from 182 patients could be evaluated regarding dislocation. Overall dislocation rate was not different between oral and nasal catheters (7.2% vs. 2.7%, p=0.16). Retching was more often noted in oral catheters (26% vs. 8%, p<0.01). Waveform capnography was unreliable in predicting dislocation (negative predictive value 17%). Re-intubation was successful in all five of the nine re-intubations where an AEC was still in situ. In four patients, the AEC was already removed when re-intubation became necessary, and re-intubation failed once, with a front of neck access as a rescue maneuver.
CONCLUSIONS: We found no difference in dislocation rate between nasal and oral position of an airway exchange catheter. However, nasal catheters seemed to be tolerated better. In the future, catheters like the staged extubation catheter may further increase tolerance.
TRIAL REGISTRATION: The study was registered in a clinical study registry (ISRCTN 96726807) on 10/06/2010.
Laparoscopic versus open distal pancreatectomy (LAPOP), study protocol for a single center, non-blinded randomized controlled trial
Authors: Björnsson Bergthor , Sandström Per , Larsson Anna Lindhoff , Hjalmarsson Claes , Gasslander Thomas
Published: April 2019

Background

Earlier non-randomized studies have suggested that laparoscopic distal pancreatectomy (LDP) is advantageous in comparison to open distal pancreatectomy (ODP) regarding hospital stay, blood loss and recovery. Only one randomized study has been conducted showing reduced time to functional recovery after LDP compared to ODP.

Methods

LAPOP is a prospective randomized, non-blinded, parallel group single center superiority trial. Sixty patients with lesions in the pancreatic body or tail that are found by a multidisciplinary tumor board to need surgical resection will be randomized to LDP or ODP. The primary outcome variable is post-operative hospital stay and secondary outcomes include functional recovery (defined as no need for intravenous medications or fluids as well as ambulatory patient able to perform activities of daily live), perioperative bleeding, complications, need of pain medication and quality of life comparison.

Discussion

The LAPOP trial will test the hypothesis that LDP reduces post-operative hospital stay compared to ODP

Registration of trial

ISRCTN:26912858, date of registration 28/9 2015
EXPERIMENTAL INVESTIGATIONS OF THE METHOD OF DETERMINATION OF OPTIMAL CONTROLLER SETTINGS
Authors: Loriia Maryna
Published: April 2019

A method for finding the optimal PID controller settings is proposed, which takes into account all the shortcomings of the most common engineering methods for finding controller settings. The method is characterized by: simplicity and versatility, which allows determining the optimal controller settings for one iteration; highly accurate identification of the control object, taking into account its nonlinearity, does not require an active experiment, provides improved dynamic properties of systems.

Tuning parameters of controllers are found by the proposed method of finding the optimal settings of the controller and the most common engineering methods for finding the settings of controllers for ACS control objects in the production of nitric acid. In addition to the examples given, a number of control objects with varying degrees of oscillation and inertia are investigated. A comparative analysis of the proposed method with the most common engineering methods for finding controller settings for ACS control objects in the production of nitric acid is performed. The analysis shows that the controller parameters found by the proposed method significantly improve the dynamic properties of the system (the overshoot decreased by 10 times, the regulation time decreased by about 30 %, the static and dynamic errors decreased by 2–3 times).
DEVELOPMENT OF THE METAL RHEOLOGY MODEL OF HIGH-TEMPERATURE DEFORMATION FOR MODELING BY FINITE ELEMENT METHOD
Authors: Markov Oleg , Gerasimenko Oleksiy , Aliieva Leila , Shapoval Alexander
Published: April 2019

It is shown that when modeling the processes of forging and stamping, it is necessary to take into account not only the hardening of the material, but also softening, which occurs during hot processing. Otherwise, the power parameters of the deformation processes are precisely determined, which leads to the choice of more powerful equipment. Softening accounting (processes of stress relaxation) will allow to accurately determine the stress and strain state (SSS) of the workpiece, as well as the power parameters of the processes of deformation. This will expand the technological capabilities of these processes. Existing commercial software systems for modeling hot plastic deformations based on the finite element method (FEM) do not allow this. This is due to the absence in these software products of the communication model of the component deformation rates and stresses, which would take into account stress relaxation. As a result, on the basis of the Maxwell visco-elastic model, a relationship is established between deformation rates and stresses. The developed model allows to take into account the metal softening during a pause after hot deformation. The resulting mathematical model is tested by experiment on different steels at different temperatures of deformation. The process of steels softening is determined using plastometers. It is established experimentally that the model developed by 89 ... 93 % describes the rheology of the metal during hot deformation. The relationship between the components of the deformation rates and stresses is established, which allows to obtain a direct numerical solution of plastic deformation problems without FED iterative procedures, taking into account the real properties of the metal during deformation. As a result, the number of iterations and calculations has significantly decreased.
IRAQI WOMEN'S SITUATION AT THE END OF THE NINETEENTH CENTURY AND THE BEGINNING OF THE TWENTIETH CENTURY
Authors: Abedalrazak Ahmed Al-Nasiri
Published: April 2019

From a historical point of view, the Iraqi society is well known for its conservative social fabric, but that didn’t necessarily mean that Iraqi women were shadowed over by that conservative atmosphere. Through its history Iraq has produced famous, courageous, and self dependent women, in different fields of life. During Modern History Iraq was a part of the Ottoman Empire for about four centuries, with the decline of that Empire, the Iraqi society was affected either directly or indirectly, and the situation of women in Iraq wasn’t getting any better, not to mention some of the local traditions that were designed to prevent women from taking their right role, even from a religious perspective, due to the tribal way of life that the Iraqi society was ruled by. All the above and more were elements that slowed down women in the Iraqi society in having a wider, more diverse role, and resulted in the long lasting; acuminated an affection of these elements, the Iraqi society has lost its capacity to rebuild and flourish.
IDENTIFICATION OF GAPS IN SPATIAL AWARENESS DEVELOPMENT TESTS AND MEANS OF THEIR ELIMINATION
Authors: Honta Victoria
Published: April 2019

The article examines the existing methods for checking spatial awareness on the basis of which seven of the most common defects of test content are detected, which automatically grow into a gap in the spatial awareness development tests (SADT). The work describes ways to minimize the effect of gaps in the test, or complete elimination by the proposed and proven methods. There was found the essence of the analogy of various SADT and the direct application of general and innovative testing principles as means of overcoming the gaps. The cases, where overcoming of the gaps is the basis for the development of spatial awareness and spatial thinking, were identified. There was systematically reviewed the module of unprocessed, missed tasks in the test, which led to a detailed analysis and investigation of the representation of graphic material in the tasks. Mini-testing of the influence of the graphic component on the speed and quality of the accomplishment of spatial tasks was carried out. The results of the mini-test showed the smallest number of errors in the cubic traditional model and the traditional model with use of shadows, indicating their successful use in the created training and evaluation course «PROSTIR-UA». Also, there was illustrated the necessity after processing of the test results, there was presented an example of the use of a block diagram of a combined algorithm of the spatial awareness development test, in the final stage of which, for the test taker, a recommendation base of the necessary auxiliary tasks is made, based on the results of the testing. The presented study aims to offer advanced approaches to existing methods and methods of motivating students to effectively use spatial awareness development tests and new tools for expanding and applying spatial knowledge.
DETERMINATION OF THE BIOADHESION INDICATORS OF VAGINAL GEL WITH RESVERATROL AND HYALURONIC ACID
Authors: Ivaniuk Olena , Yarnykh Tatyana , Kovalevska Inna
Published: April 2019

Aim. The purpose of the work is to determine the bioadhesion indices of vaginal gel with resveratrol and hyaluronic acid, as well as the choice of the type and content of mucoadhesives in the composition.

Materials and methods. As research objects samples of gels with different mucoadhesives in the composition were used. Among used mucoadhesives were: sodium alginate (FMC BioPolimer AS, Norway), methyl cellulose (Shin Etsu, Germany), Methocel – methyl cellulose with hydroxypropylmethyl cellulose (Dow Pharmaceutical Sciences, USA), OraRez® W-100L16 – vinyl methyl ether and maleic anhydride copolymer (BOAI, China). As a comparison drug, vaginal gel "Gynodec" (Yuriya-Pharm) was used. During the study, the rate of gel distribution, the degree of deformation under the influence of mechanical forces, the degree of the gel fixation on the surface of the mucosa and the adhesion ability of the samples have been determined.

Results. The study has determined that sample No. 2 with sodium alginate has the highest distribution rate, which was 1.56 cm/min. The study of the fixation of samples on the surface of the model of the mucous was performed by the method of flow. The results have showed that the sample with sodium alginate has the closest value to the reference drug. The adhesive ability of samples with different sodium alginate contents was determined. The tensimetric study has found that at a concentration of 0.5 %, the force required to separate the surface is 6158 Pa.

Conclusions. On the basis of the complex of physico-chemical studies, bioadhesion indicators of vaginal gel with resveratrol, depending on the type and concentration of mucoadhesives have been determined. According to the distribution parameters on the surface of the genital mucosa model, it has been found that the best properties compared with other types of mucoadhesives has a sample containing sodium alginate. The study by means of a strain gauge has found that the addition of sodium alginate at a concentration of 0.5 % would provide a satisfactory adhesive ability of the vaginal gel.
IMPROVING THE TECHNIQUE OF SCRAMBLED DESSERTS USING THE FOOD SUPPLEMENT “MAGNETOFOOD”
Authors: Tsykhanovska Iryna , Yevlash Victoria , Alexandrov Alexandr , Khamitova Barna , Svidlo Karyna , Nechuiviter Olesia
Published: April 2019

For improving the technology of scrambled dessert products, a food supplement, based on the nanopowder of oxides of two- and trivalent iron “Magnetofood” was introduced in the recipe composition. The object of the studies is base recipes: one of mousse “Cranberry” and sambuk “Apple”. For determining technological characteristics and quality parameters, conventional standard methods were used.

It has been established, that introduction of the food supplement “Magnetofood” in amount 0,1 %, 0,15 %, 0,2 % of the recipe mixture mass improves consumption properties of scrambled desserts. The mean value of the organoleptic analysis increases by (1,25±0,1) points. The density also decreases by (29±1) kg/m3 for mousses, by (26±1) kg/m3 for sambuks, and scrambling duration – by ~ 3 minutes. At storing during 24 hours at h=(90±2) %, the microbial contamination of the surface of samples decreases – QMAFAnM in 10 times, yeasts – in 2 times, molds – in 2 times.

It has been established, that introduction of the supplement “Magnetofood” favors the growth of the foam-creating ability in average: by (40±2) % for mousses, by (55±3) % for sambuks. The porosity increases by (14,3±0,7) % for mousses, by (12,7±0, 6) % for sambuks. The foam structure stability of scrambled desserts improves by (14±1,1) %. The food supplement “Magnetofood” also raises the effective viscosity by (32 ±1) Pa·s for mousses and by (41±2) Pa·s for sambuks and the mechanical strength of scrambled desserts in 1,23 times.

The highest parameters were inherited to mousses and sambuks with supplement “Magnetofood” mass share 0,15 %.

There have been experimentally substantiated scrambling technological parameters and regimes of recipe mixtures of berry-fruit mousses and sambuks, modified by the food supplement “Magnetofood”. The total scrambling duration is (14–16) minutes. The initial scrambling speed of the berry-fruit base is (2,0–2,2) s-1, at that the scrambling time is (5–6)·60s. Then the recipe mixture is scrambled at speed (3,3–3,5) s-1 during (3–4)·60s. Scrambling is finished at speed (2,0–2,2) s-1. The distinctive feature of the improved technology is premixing of the food supplement “Magnetofood” with gelatin, realized before the technological operation of soaking gelatin in cold water.

The obtained experimental data may be used at developing innovative technologies of scrambled dessert products with the food supplement “Magnetofood”.
DETERMINATION OF HONEY GEOGRAPHIC ORIGIN ACCORDING TO ITS ELEMENTAL COMPOSITION BY THE METHOD OF X-RAY FLUORESCENCE
Authors: Kasianchuk Victoria , Berhilevych Oleksanda , Negai Inna , Dimitrijevich Lubov , Marenkova Tatyana
Published: April 2019

The aim of the research was to determine features of the elemental composition of polyfloral honey from the Odessa region (Ukraine) by the method of x-ray fluorescence for using these features in the geographic marking of the region of honey origin. A choice of honey from the Odessa region is explained by its relatively good ecology, optimal maritime climate and enough motley grass resources for gathering nectar by bees. At the same time the Odessa region occupies the fourth place among regions – honey producers in Ukraine with a right to export honey beyond the country with specific weight 10 % from the total export of this product.

11 samples of fresh honey and 14 samples of honey, stored during one year were studied as to the content of 22 mineral elements. The elemental analysis of honey was realized on the energy-dispersive x-ray fluorescent spectrometer ElvaX Light SDD. Each sample was studied for 5 times. The obtained results were statistically processed by the standard methodology. The determination distinctness of mass shares of metals is no worse than 0,1 %. Limits of finding admixtures of heavy metals in the light matrix are no worse than 1 ppm. The studies were realized during 2016-2017.

It has been established, that lyophilization of honey doesn’t essentially influence determination parameters of the elemental composition of honey by the method of x-ray fluorescence. The analysis of energy-dispersive spectrums of mineral elements determined that marker elements for honey from the Odessa region are Cl, K, Ca, that prevail among other studied mineral elements. There has been established the typical intensity of a signal of energy-dispersive spectrums for Cl, K, Ca of honey from the Odessa region that correspond to the following values: for fresh honey Cl from 27075 to 29429; K from 47 296 to 41 546; Ca from 7572 to 6928; for honey, stored during one year: Cl from 40383 to 37044; K from 43 589 to 42 591;Ca from 15495 to 10006. These parameters may serve as markers for honey from the Odessa region. At the same time the obtained results may be used for controlling the quality of natural honey by its element composition for identifying a geographic place of origin.
OBTAINING OF Β-LACTOGLOBULIN BY GEL FILTRATION OF COW MILK WHEY
Authors: Yukalo Volodymyr , Datsyshyn Kateryna , Storozh Liudmyla
Published: April 2019

Milk whey proteins carry out a number of important biological functions and also they are precursors of many biologically active peptides (antihypertensive peptides, antagonists of opioid receptors, regulators of intestinal motility, immunomodulatory, anti-microbial and anti-cancer peptides, appetite regulators and so on.). An important stage in natural bioactive peptides obtaining from milk whey proteins is the isolation of homogeneous proteins-precursors. Considering the significant difference in the molecular masses of whey proteins, a promising method for their selection is gel filtration. The purpose of the research was the fractionation of bioactive peptides precursors from milk whey using gel filtration on Sephadex G-150. The whey was obtained from fresh skimmed milk after isoelectric precipitation of casein. Gel filtration was carried out on the columns from a liquid chromatography kit by the “Reanal” company. The fractional composition and the degree of homogeneity of milk whey proteins were determined by disc-electrophoresis in the plates of a polyacrylamide gel. A repeated gel filtration of fractions from the chromatographic peaks, separated into sections, was performed to increase the fractionation efficiency. While choosing a dextran gel for gel filtration of precursors of biologically active peptides from milk whey proteins, we have taken into account the range of their molecular weights (from 10000 to 150000 Da), the ability to form supramolecular structures (β-LG), as well as the previously obtained results of gel filtration. As a result, it was shown that repeated gel filtration of milk whey on Sephadex G-150 allows efficiently fractionate the proteins-precursors of bioactive peptides. The range of peptides and proteins molecular weights that can be fractionated on this Sephadex is from 5000 to 300 000 Da. The usage of repeated gel filtration on Sephadex G-150 with the chromatogram separation into sectors allows to effectively fractionate proteins-precursors of bioactive peptides from milk whey. In particular, homogeneous β-lactoglobulin (degree of homogeneity > 95 %) and partially purified α-lactalbumin, as well as a group of immunoglobulins and a proteose-peptone fraction were obtained.
Evaluation of the International Conference Center Mega-Project in Isfahan Metropolis
Authors: NOORAIE Homayoon , YADEGARI Ali , GHORBANI Masoud , GHORBANI Sepideh
Published: April 2019

One of the megaprojects under construction in the Isfahan metropolis is the project of the International Conference Center of the Isfahan Metropolis, which, despite the multidimensional and profound effects, has not yet been fully explored. Hence, the aim of this paper is to evaluate the megaproject of the international conference center of the Isfahan metropolis in terms of various physical, social, economic, managerial and environmental dimensions. Accordingly, the mixed research (combination of Qualitative and Quantitative methods) paradigms have been used. The data have been also collected by means of both document and survey methods (interview type). For evaluation and analysis, Likert scale, AHP method and Expert Choice software have been used. The results show that, despite the positive features of the Megaproject in the social, physical, and environmental sectors, this megaproject in the economic and management sector has major weaknesses, most notably is non-matching of costs with efficiency and non-achievement of objectives over the specified time. So there are some suggestions to address this defect.

Streszczenie

Jednym z megaprojektów budowanych w metropolii Isfahan jest projekt Międzynarodowego Centrum Konferencyjnego Metropolii Isfahan, które pomimo wielowymiarowych i dogłębnych analiz nie zostało jeszcze w pełni zbadane. Celem niniejszego artykułu jest ocena megaprojektu pod względem zróżnicowanych aspektów fizycznych, społecznych, ekono-micznych, zarządczych i środowiskowych. W związku z tym wykonano połączone badania – kombinację metod jakościowych i ilościowych. Dane zostały zebrane za pomocą zarówno dokumentów jak i metod sondażowych (typ wywiadu). Do oceny i analizy użyto skali Likerta, metody AHP i oprogramowania Expert Choice. Wyniki pokazują, że prócz pozytywnych cech megaprojektu w sektorach społecznym, fizycznym i środowiskowym, megaprojekt w sektorze gospodarczym i zarządzania ma wiele niedociągnięć a w szczególności wykazuje nieadekwatne odniesienie kosztów do osiągniętych celów w określonym czasie. Wprowadzone zostają sugestie naprawcze odnoszące się do tego błędnego rozwiązania.
The Impact of Natural Landscape on Historical Urban Space: The Case of Vinnytsia City, Ukraine
Authors: SUBIN-KOZHEVNIKOVA Alona , SMOLIAK Volodymyr
Published: April 2019

The paper deals with the architectural and spatial development of historical cities of Ukraine under the influence of natural landscape determinants by the example of Vinnytsia city. This issue still remains poorly studied, since the formation of the urban space of Ukrainian cities was mainly studied as a socio-historical phenomenon. The purpose of the article is to identify the peculiarities of the natural landscape situation, to disclose the regularities, features and basic principles of the influence of natural landscape factors on the architectural and spatial evolution of the city. The work is based on the complex use of general scientific and special research methods. It has enabled us to comprehensively consider the source base, analyze the state of the research and establish the main problems of urban space development, taking into account the landscape component at the present stage. It is established that in recent years the urban space of Vinnytsia is being actively transformed. That is why the study of the urban environment: the identification of factors that influenced the formation and development, in particular natural landscape, will help urban planners and designers to enhance the architectural and artistic expression of modern urban space.

Streszczenie

Artykuł dotyczy rozwoju architektonicznego i przestrzennego historycznych miast Ukrainy pod wpływem naturalnych uwarunkowań krajobrazowych na przykładzie miasta Winnica. Kwestia ta nadal pozostaje słabo zbadana, ponieważ kształtowanie przestrzeni miejskiej ukraińskich miast było głównie badane jako zjawisko społeczno-historyczne. Celem artykułu jest rozpoznanie specyfiki sytuacji naturalnego krajobrazu, ujawnienie prawidłowości, cech i podstawowych zasad wpływu naturalnych czynników krajobrazowych na architektoniczną i przestrzenną ewolucję miasta. Praca opiera się na kompleksowym zastosowaniu ogólnych naukowych i specjalnych metod badawczych. Pozwoliło nam to kompleksowo rozważyć bazę źródłową, przeanalizować stan badań i ustalić główne problemy rozwoju przestrzeni miejskiej, biorąc pod uwagę komponent krajobrazu na obecnym etapie. Ustalono, że w ostatnich latach aktywnie przekształcana jest miejska przestrzeń Winnicy. Dlatego badanie środowiska miejskiego: identyfikacja czynników, które wpłynęły na kształtowanie się i rozwój, w szczególności naturalny krajobraz, pomoże planistom i projektantom w poprawie architektonicznego i artystycznego wyrazu nowoczesnej przestrzeni miejskiej.
Change of the Grade Line of Bridges Constructed with Cantilever Concreting Technology
Authors: MACHELSKI Czeslaw , PISAREK Bartosz
Published: April 2019

The cantilever concreting technology is one of modern methods of constructing the concrete long-span bridges. The fundamental features of this method are saving of materials and of construction costs (especially of scaffolding and of formwork) and first of all a possibility of carrying out the construction of the span in many places at the same time. The negative feature of these bridges is a large long-term deflection of the span, as a result of rheological processes in the concrete and in the pre-tensioning steel. Deflection measurements at the mid-span indicate a visible lowering of the grade line of the bridge span, already after few years of service. In this paper the deflection w(t) is represented as a function of the service time of the bridge structure, calibrated by the results of monitoring of the bridge deflection. Analyses presented in this paper will be used to develop rheological models of behavior of the concrete and of the pre-tensioning steel.

Streszczenie

Technologia betonowania wspornikowego jest jedną z nowoczesnych metod konstruowania betonowych mostów o dużej rozpiętości. Podstawowymi cechami tej metody są oszczędność materiałów i kosztów budowy (zwłaszcza rusztowań i szalunków), a przede wszystkim moż-liwość wykonywania poszczególnych przęseł w tym samym czasie. Negatywną cechą tych mostów jest duże długotrwałe ugięcie mostu powstające w wyniku procesów reologicznych w betonie i stali naprężającej. Pomiary ugięć w połowie rozpiętości wskazują na widoczny ich wzrost już po kilku latach użytkowania. W niniejszym artykule ugięcie w(t) przedstawiono w funkcji czasu użytkowania konstrukcji mostu. Wartości te skalibrowano na podstawie wyników monitoringu ugięć mostu. Analizy przedstawione w niniejszym artykule posłużą do opracowania reologicznych modeli zachowania betonu i stali naprężającej.
Zinc and Lead in Aquatic Plants and Bottom Sediments of Anthropogenic Rivers
Authors: MAŁACHOWSKA-JUTSZ Anna , GUMIŃSKA Jolanta
Published: April 2019

The aim of the study was to assess contamination of bottom sediments with heavy metals (lead and zinc) and its influence on the dominant macrophytes in selected four Polish anthropogenic rivers. Due to metal concentration, the sediments were classified in terms of their purity by three criteria: geochemical criterion, LAWA classification and ecotoxicological criterion. The studies revealed that tested macrophytes (Common Reed and Yellow Iris) were characterized by low and very low accumulation coefficient translocation factors of heavy metals. Common Reed was the plant which, to the greatest extent, accumulated heavy metals and therefore it was proposed as an indicator of lead and zinc contamination of river sediments. Heavy metals were mainly accumulated in roots and were not transported to their shoots as evidenced by very low translocation factors. Yellow Iris accumulated heavy metals to a lesser extent than Common Reed, however, it showed higher translocation factors of these metals. Zinc was preferentially collected by both plants in comparison with lead, as confirmed by higher translocation factors for zinc.

Streszczenie

Celem pracy była ocena stopnia zanieczyszczenia osadów dennych metalami ciężkimi (ołowiem i cynkiem) oraz ich wpływu na dominujące makrofity w wybranych czterech przekształconych antropogenicznie rzekach w Polsce. Ze względu na stężenie metali osady rzeczne zostały sklasyfikowane pod kątem ich czystości według trzech kryteriów: kryterium geochemicznego, klasyfikacji LAWA i kryterium ekotoksykologicznego. Badania wykazały, że badane makrofity (trzcina pospolita i kosaciec żółty) charakteryzowały się niskimi i bardzo niskimi współczynnikami akumulacji i translokacji metali ciężkich. Trzcina pospolita to roślina, która w największym stopniu akumulowała metale ciężkie i dlatego została zaproponowana, jako wskaźnik stopnia skażenia osadów rzecznych ołowiem i cynkiem. Metale ciężkie gromadziły się głównie w korzeniach i nie były transportowane do pędów, o czym świadczą bardzo niskie wartości współczynników translokacji. Kosaciec żółty akumulował metale ciężkie w mniejszym stopniu niż trzcina pospolita, jednakże w tym przypadku zaobserwowano wyższe współczynniki translokacji metali. Cynk był preferencyjnie pobierany przez obie rośliny w porównaniu do ołowiu, co potwierdzono wyższymi wartościami współczynników translokacji.
Soil Electrical Conductivity and Topography Related to Yield for Three Contrasting Soil–Crop Systems
Authors: Kitchen N. R. , Drummond S. T. , Lund E. D. , Sudduth K. A. , Buchleiter G. W.
Published: April 2019

Many producers who map yield want to know how soil and landscape information can be used to help account for yield variability and provide insight into improving production. This study was conducted to investigate the relationship of profile apparent soil electrical conductivity (ECa) and topographic measures to grain yield for three contrasting soil–crop systems. Yield data were collected with combine yield‐monitoring systems on three fields [Colorado (Ustic Haplargids), Kansas (Cumuic Haplustoll), and Missouri (Aeric Vertic Epiaqualfs)] during 1997–1999. Crops included four site‐years of corn (Zea mays L.), three site‐years of soybean (Glycine max L.), and one site‐year each of grain sorghum [Sorghum bicolor (L.) Moench] and winter wheat (Triticum aestivum L.). Apparent soil electrical conductivity was obtained using a Veris model 3100 sensor cart system. Elevation, obtained by either conventional surveying techniques or real‐time kinematic global positioning system, was used to determine slope, curvature, and aspect. Four analysis procedures were employed to investigate the relationship of these variables to yield: correlation, forward stepwise regression, nonlinear neural networks (NNs), and boundary‐line analysis. Correlation results, while often statistically significant, were generally not very useful in explaining yield. Using either regression or NN analysis, ECa alone explained yield variability (averaged over sites and years R2 = 0.21) better than topographic variables (averaged over sites and years R2 = 0.17). In six of the nine site‐years, the model R2 was better with ECa than with topography. Combining ECa and topography measures together usually improved model R2 values (averaged over sites and years R2 = 0.32). Boundary lines generally showed yield decreasing with increasing ECa for Kansas and Missouri fields. Results of this study can benefit farmers and consultants by helping them understand the degree to which sensor‐based soil and topography information can be related to yield variation for planning site‐specific management.
Using Electrical Conductivity Classification and Within‐Field Variability to Design Field‐Scale Research
Authors: Johnson Cinthia K. , Eskridge Kent M. , Wienhold Brian J. , Doran John W. , Peterson Gary A. , Buchleiter Gerald W.
Published: April 2019

Agronomic researchers are increasingly accountable for research programs and outcomes relevant to producers. Participatory research—where farmers assume leadership roles in identifying, designing, and managing on‐farm field‐scale research—addresses this directive. However, replication is often unfeasible at this level of scale, underscoring a need for alternative methods to estimate experimental error. We compared mean square errors to evaluate: (i) within‐field variability for estimating experimental error (in lieu of replication) and (ii) classified within‐field variability, using apparent electrical conductivity (ECa), for estimating plot‐scale experimental error. Eight 31‐ha fields, within a contiguous section of farmland (250 ha), were managed as two replicates of each phase of a no‐till winter wheat (Triticum aestivum L.)–corn (Zea mays L.)–millet (Panicum miliaceum L.)–fallow rotation. The section was ECa–mapped (approximately 0‐ to 30‐cm depth) and separated into four classes (ranges of ECa). Georeferenced sites (n = 96) were selected within classes, sampled, and assayed for multiple soil parameters (0‐ to 7.5‐ and 0‐ to 30‐cm depths) and residue mass. Within‐field variance effectively estimated experimental error variance for several evaluated parameters, supporting its potential application as a surrogate for replication. Comparison of data from the field‐scale experimental site to that from a nearby plot‐scale experiment revealed that ECa–classified within‐field variance approximates plot‐scale experimental error. We propose using this relationship for a systems approach to research wherein treatment differences and their standard errors, derived from ECa–classified field‐scale experiments, are used to roughly evaluate treatments and identify research questions for further study at the plot scale.
Productivity and Survival of Defoliated Wheatgrasses in the Rolling Plains of Texas
Authors: Malinowski D. P. , Hopkins A. A. , Pinchak W. E. , Sij J. W. , Ansley R. J.
Published: April 2019

In the Texas Rolling Plains, cool‐season perennial grasses may complement limited forage availability in March–May and October–December. In two experiments conducted at Vernon, TX, on a sandy loam soil (fine‐loamy, mixed, thermic Udic Paleustalfs), we evaluated productivity and persistence of crested [Agropyron cristatum (L.) Gaertn. × A. desertorum (Fisch. ex Link) J.A. Schultes], hybrid [Elytrigia repens (L.) Nevski × Pseudoroegneria spicata (Pursh) L‘ve], intermediate [Thinopyrum intermedium (Host) Barkworth & D.R. Dewey], pubescent [T. intermedium ssp. barbulatum (Schur) Barkw. & D.R. Dewey], and tall wheatgrass [T. ponticum (Podp.) Barkworth & D.R. Dewey] under combinations of 3‐ or 6‐wk defoliation frequency at 7.5‐ or 15‐cm. About 64% more herbage yield was harvested from all species at the 7.5‐ vs. 15‐cm defoliation height in the first, but only from crested, hybrid, and pubescent wheatgrass in the second growing season. Frequent defoliation increased herbage by 22% in Experiment A or 37% in Experiment B only in the first growing season. Tiller survival increased with frequent defoliation in intermediate wheatgrass by 33% in Experiment A and up to 70% in Experiment B, but decreased by 52% in hybrid and by 33% in pubescent wheatgrass in Experiment A, and up to 50% in Experiment B. Lower nighttime soil temperatures increased tiller survival during summer in swards defoliated at the 7.5‐ vs. 15‐cm height. Wheatgrass productivity increased under intensive or frequent defoliation in the first, but declined in several species in the subsequent growing season, making their potential to complement forage base limited.