bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparative study of antioxidant and anticancer activities and HPTLC quantification of rutin in white radish (Raphanus sativusL.) leaves and root extracts grown in Saudi Arabia
Authors: Noman Omar M. , Nasr Fahd A. , Alqahtani Ali S. , Al-zharani Mohammed , Cordero Mary Anne W. , Alotaibi Amal A. , Bepari Asmatanzeem , Alarifi Saud , Daoud Ali
Published: March 2021

The nutrient contents ofRaphanus sativusL. (white radish) leaves (RSLs) and roots are known to have promising vital effects. We comparatively investigated the leaves and roots ofR. sativusgrown in Saudi Arabia to estimate the total phenol and flavonoid contents using the standard colorimetric methods. The antioxidant activity of RSLs andR. sativusroots (RSRs) were measured by 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays. Both extracts’ cytotoxic activity was assessed by MTT assay against several human cancer cell lines (A549, HepG2, MDA-MB-231, and MCF-7). High-performance thin-layer chromatography was used to identify and quantify the biomarker compound rutin in both extracts. The total phenolic content in RSLs (125.3 mg of gallic acid equivalent [GAE]/g) was higher than that in roots (95.8 of GAE/g), whereas the flavonoid content (44.5 mg of quercetin equivalent [QE]/g) was almost double compared in RSR extract (24.4 of QE/g). Similarly, RSLs exhibited a higher antioxidative activity than RSRs in both DPPH (IC50216.8 vs 359.7 µg/mL) and ABTS (IC50326.7 vs 549 µg/mL) models. RSLs also demonstrated the highest antiproliferative efficiency against all cell lines, with IC50values of 217–453 µg/mL. The reversed-phase-high-performance thin-layer chromatography results showed the presence of rutin (5.2 µg/mg) only in RSLs. Our study indicates RSLs as a promising source of bioactive compounds compared with roots.
Dependency network-based approach to the implicit structure and semantic diffusion modes of semantic prosody
Authors: Liu Jianpeng , Zhang Luyao , Bai Xiaohui
Published: March 2021

This paper studies the implicit structures and the diffusion modes of semantic prosody on the dependency networks of some English words such as cause and their Chinese equivalents. It is found that the structure of semantic prosody is a bi-stratified network consisting of a few large clusters gathering in the center with most nodes of low dependency capability scattered around. With regard to the diffusion modes, results show that: (i) within one shortest path length, the core words directly attract the nodes with the same or similar semantic characteristics and exclude those with conflicting ones, creating the clearest and the most intense semantic diffusion; (ii) over one shortest path length, semantic diffusion is achieved through content words or function words, and the semantic diffusion modes created with function words as bridges are relatively vaguer and more complicated ones. This conclusion also results in the semantic prosodies of other English words and their Chinese equivalent words, revealing, to some extent, a common cognitive approach to understanding the internal structure and the diffusion modes of semantic prosody.
Collision simulation of potato on rod separator
Authors: Deng Weigang , Wang Chunguang , Xie Shengshi
Published: March 2021

To obtain the collision characteristics of potatoes colliding with steel rods of different parameters, the finite element analysis (FEA) method was used to study the impact contact stress, collision displacement, acceleration and impact force. The results showed that with increasing rod diameter, the maximum collision displacement of the potato in the Y direction decreased, and the maximum collision acceleration and impact peak force increased. With increasing rod tilt angle and rod spacing, the maximum collision displacement increased linearly, but the maximum collision acceleration and impact peak force decreased linearly. Within the range of analysis factors, the fluctuation of the maximum collision displacement, acceleration and impact peak force caused by the change in rod diameters were the smallest, which were 0.34 mm, 38 m/s2 and 9 N, respectively. When potatoes collided with single and double rods, all the collision characteristics increased with the increase in potato drop height, and the results for double rods were significantly smaller than those for single rod collision. When the potato mass was 250 g, the drop height was 200 mm for single rod collision or 250 mm for double rod collision, the impact contact stress reached the yield stress, and the potato was damaged. This article provides a data basis and a referenced method for the optimized design of the structural parameters and working parameters of the rod separator in the process of potato mechanized harvesting.
Dynamics of synthetic drug transmission models
Authors: Liu Shitao , Zhang Liang
Published: March 2021

The deterministic and stochastic synthetic drug transmission models with relapse are formulated. For the deterministic model, the basic reproduction number R
0 is derived. We show that if R
0 < 1, the drug-free equilibrium is globally asymptotically stable and if R
0 > 1, there exists a unique drug-addition equilibrium which is globally asymptotically stable. For the stochastic model, we show there exists a unique global positive solution of the stochastic model for any positive initial value. Then by constructing some stochastic Lyapunov functions, we show that the solution of the stochastic model is going around each of the steady states of the corresponding deterministic model under certain parametric conditions. The sensitive analysis of the basic reproduction number R
0 indicates that it is helpful to reduce the relapse rate of people who have a history of drug abuse in the control of synthetic drug spreading. Numerical simulations are carried out and approve our results.
Experimental investigation on pool boiling for downward facing heating with different concentrations of Al2O3 nanofluids
Authors: Zhou Z. , Gao Y. , Hsieh H.-E. , Miao H. , Zhang Z.
Published: March 2021

An experimental study has been conducted to examine the effect of different concentrations of α-Al2O3 nanofluids on boiling heat transfer for downward facing heating. The experimental results indicated that the surface heat transfer was enhanced with the rise of the nanofluids concentration, due to the bubble generation rate and disturbance increased. For downward facing heating, bubbles were not able to escape since the bouncy force influenced, and the vapor film appeared earlier as the increase of bubble generation rate. However, the heat transfer coefficient remains at a relatively high value in the early stage of film boiling, which suppresses the deterioration of heat transfer, due to the influences of nanofluids. As the various concentrations of nanofluids increased from 0 g/L to 0.012 g/L, it was found that the enhancement of the CHF (critical heat flux) up to 20.5%. After the nanofluids boiling, the surface roughness decreased and the wettability became worse. From the experimental phenomena, under the influence of these two factors, the bubble activity was enhanced.
The crystal structure of 3-amino-5-carboxypyridin-1-ium perchlorate monohydrate, C6H9ClN2O7
Authors: Hou Siyu , Ren Penggang , Zeng Yan
Published: March 2021

C6H9ClN2O7, triclinic, P

1
‾

$\bar{1}$

(no. 2), a = 6.8667(4) Å, b = 7.5196(4) Å, c = 10.0908(5) Å, α = 74.237(2)∘, β = 81.603(3)∘, γ = 88.888(3)∘, V = 495.95(5) Å3, Z = 2, R

gt
(F) = 0.0377, wR

ref
(F
2) = 0.0902, T = 150(2) K.
Apocyanine dyes
Authors: Mustroph Heinz
Published: March 2021

Cyanine dyes without a methine group or polymethine chain between their two terminal unsaturated heterocycles are called apocyanines. Such colorants which are yellow and red received the labels xantho-apocyanine and erythro-apocyanine dyes, respectively. Nevertheless, from time to time in the literature, the term “apocyanine dyes” is wrongly applied to various N-bridgehead heterocycles. In addition, the phenylogous zeromethine hemicyanine dyes are often incorrectly referred to with the term “apocyanine dyes”. This chapter clarifies the definition of apocyanine, describes how confusion over the term has come about, and points the ways in which it is sometimes incorrectly employed.
Zinc sulfide pigments
Authors: Pfaff Gerhard
Published: March 2021

Zinc sulfide pigments belong besides titanium dioxide and zinc oxide pigments to the most important inorganic whites. The pigments are mostly used in primers, plastics, fillers, putties, artists’ colors, and emulsion paints. Zinc sulfide pigments are divided into pure zinc sulfide (ZnS) and lithopone (mixtures of ZnS with BaSO4) pigments. They are synthesized using precipitation processes in aqueous medium. Compared with pure zinc sulfide pigments, lithopone pigments have a much larger technical importance.
Extraction behavior of Pu(IV), Th(IV), and fission product elements with hexapropyl and hexabutyl phosphoramides
Authors: Govindaraj Jegan , Balija Sreenivasulu , Ammath Suresh , C. V. Siva Brahmananda Rao , Nagarajan Sivaraman
Published: March 2021

Hexapropyl phosphoramide (HPPA) and hexabutyl phosphoramide (HBPA) were examined for the macrolevel extraction and stripping of tetravalent metal ions such as Pu(IV) and Th(IV). The solvation number of Pu(IV) with both the phosphoramides were measured. The number of stages was evaluated for the quantitative extraction and stripping of Pu(IV) and Th(IV) in cross-current mode with 1.1 M phosphoramides in xylene from the nitric acid medium. The distribution ratios for the extraction of Th(IV) were measured with 1.1 M phosphoramides in xylene as a function of equilibrium aqueous phase Th(IV) and nitric acid concentration. In addition, distribution ratios for the extraction of fission product elements such as Zr, Tc, Ru, lanthanides (La, Pr, Nd and Gd) and activation product Am were also measured with 1.1 M HPPA and HBPA in n-Dodecane (n-DD) system as a function of aqueous phase nitric acid concentration. The extraction data generated with phosphoramides were compared with a 1.1 M TBP/n-DD system.
Romance and Latin approaches to word structure features
Authors: Gibert-Sotelo Elisabeth , Pujol Payet Isabel
Published: March 2021

The interest in morphology and its interaction with the other grammatical components has increased in the last twenty years, with new approaches coming into stage so as to get more accurate analyses of the processes involved in morphological construal. This special issue is a valuable contribution to this field of study. It gathers a selection of five papers from theMorphology and Syntaxworkshop (University of Girona, July 2017) which, on the basis of Romance and Latin phenomena, discuss word structure and its decomposition into hierarchies of features. Even though the papers share a compositional view of lexical items, they adopt different formal theoretical approaches to the lexicon-syntax interface, thus showing the benefit of bearing in mind the possibilities that each framework provides. This introductory paper serves as a guide for the readers of this special collection and offers an overview of the topics dealt with in each contribution.
Goal, source, and route preverbs in Latin: their interaction with spatial datives
Authors: Acedo-Matellán Víctor
Published: March 2021

Prefixed verbs in Latin may take an argument in the dative case, interpreted as the ground of the spatial relation codified by the preverb. This phenomenon is constrained by the semantics of that spatial relation: while preverbs encoding a location, a goal, or a source of motion generally accept the dative argument, preverbs encoding a route do not. I propose a syntactic analysis of this phenomenon, framed within the Spanning framework. I assume an analysis of the spatial dative as an applied argument interpreted as a possessor of the final location of motion. Developing a configurational theory of spatial relations, I show how only the syntax-semantics of the preverbs interpreted as encoding a location, be this final (a goal), initial (a source), or unrelated to motion (a static location), is compatible with the projection of an Appl(icative)P integrating the dative argument. By the same token, pure route preverbs, involving a path but not a location, are correctly predicted to disallow the projection of ApplP, and hence the spatial dative.
Reliability, Validity, and Minimal Detectable Change of the Backward Walk Test in Older Adults With Dementia
Authors: Chan Wayne L. S. , Cheung Yue To , Lee Yin Wing , Teo Ai Mei , Wo Hui Kiu , Wong Yui
Published: March 2021

Background and Purpose:

The backward walk test (BWT) has been used to evaluate the balance, gait, and fall risk for older adults, but its psychometric properties in older adults with dementia have not been investigated. This study aims to examine the test-retest and interrater reliability, construct and known-group validity, and absolute and relative minimal detectable changes at the 95% level of confidence (MDC95) of the BWT in older adults with dementia.

Methods:

This study was a cross-sectional study with repeated measures. Thirty older adults with a mean age of 83.3 years and a diagnosis of dementia who were able to walk backward independently for at least 3 m were recruited from day care and residential care units. The BWT was conducted on 3 separate testing occasions within 2 weeks under 2 independent raters using a modified progressive cueing system. The 10-m walk test (10MWT), Berg Balance Scale (BBS), and Timed Up and Go test (TUG) were used to assess the gait, balance, and mobility performances of the participants.

Results and Discussion:

The BWT had excellent test-retest reliability—intraclass correlation coefficient (ICC) = 0.96—and interrater reliability (ICC = 0.97-0.97) in the participants. Moderate correlations between the BWT and BBS (Spearman's ρ = 0.60) and strong correlations between the BWT and 10MWT (ρ= 0.84) and TUG (ρ=−0.82) were found. The BWT could distinguish between the participants who ambulated with walking aids and those who did not (P = .005). The participants who had experienced a fall in the past year did not differ significantly in the BWT compared with those who had not fallen (P = .36). The absolute and relative MDC95 of the BWT in the participants were 0.10 m/s and 39.3%, respectively.

Conclusions:

The BWT is reliable and valid in assessing balance and gait performances in older adults with dementia. Further investigation is needed to determine whether the BWT can identify those with an increased risk of falls.
Merdeka Belajar - Kampus Merdeka Policy: How Does It Affect the Sustainability on Accounting Education in Indonesia?
Authors: Lhutfi Iqbal , Mardiani Rika
Published: March 2021

This study attempts to conduct an analysis of Merdeka Belajar - Â Kampus Merdeka's policy on how does it affect the sustainability of accounting education in Indonesia. A Semi-systematic Descriptive Literature Method analysis was used in this paper to map research areas, synthesize conditions of information, establish the direction for further research, and to classify areas where further research is required. The results of the study show this policy is expected to have better skilled and strong character students. They are expected to have more experience, knowledge, and become more competitive graduates. Despite those advantages, this policy also has potential weaknesses, namely the large number of studies taken might distract the direction of the path of study, this policy does not affect educational-based studies that are geared towards producing teachers, and regularly changing policies by every new minister pays less attention to the sustainability aspects. This paper research implies the policymakers to pay more attention to the sustainability of accounting education by considering the required aspects.
Information and Communication Technology (ICT) and Firms Export in Indonesia
Authors: Rifin Amzul , Nauly Dahlia
Published: March 2021

In the globalization era, ICT has important role in firms ability to export their products. Theobjective of this research is to analyze the impact of ICT on the ability of Indonesian firm to exporttheir product. Two ICT methods are analyzed, email and website. The data utilized is thesecondary data from the Enterprise Survey conducted by the World Bank in 2015 with 1317 firmsdata. Two analysis is conducted, using chi-square analysis and logit equation. The result indicatesthat 32 percent of firms using email to contact their clients exported their product meanwhile only 5 percent of firms which do not use email exported their products. In additon, 36 percent of firms with website exported their products meanwhile only 7 percent of firms without website exported their products. Using chi-square analysis, it shows that there is a relationship between ICT and where the firms sold their products, whether in domestic or international market. The logit equation indicates that firm ownership, email and website affects the firm ability to export. Therefore, firms must be pushed towards digitalization in order to compete in the export market.
The Role of Village-Owned Enterprises (BUMDES) for The Village Community Economy
Authors: Puri Irim Tiara , Khoirunurrofik Khoirunurrofik
Published: March 2021

Regional disparities between rural and urban areas in Indonesia are still being an important issue inthe economic development. The government has carried out an economic stimulus in the village,one of them is through the Village Fund program for village development. One of the potentialpositive effects of implementing the Village Fund in Indonesia is creating a local economicinstitution that is expected to be able to develop the competition between villages through Village-Owned Enterprises (BUMDes). This study aimed to find out the empirical evidence whetherBUMDes, as one of the programs driving the village economy affected the welfare of ruralcommunities by looking at the differences in the improvement of the village economy. This studyused BUMDes and Village Potential (Podes) data in 2014 and 2018, and Village Fund Allocationas a proxy for economic activity at the village level by using the econometric model approach ofPropensity Score Matching and Difference in Difference with a fixed effect model. The resultsshowed that villages that had BUMDes gave a greater effect than the ones which did not haveBUMDes in improving the economy of the village community.
Multicollinearity in Tourism Demand Model : Evidence from Indonesia
Authors: Wasiaturrahma Wasiaturrahma , Rohmawati Hilda
Published: March 2021

The demand for tourism in Indonesia continues to increase every year but cannot reach thepredetermined target. Studies on tourism demand have been done a lot, especially in Indonesia.The selection of the dependent variable in tourism demand is not problematic and acceptable,however, the selection of the independent variable is still unclear. This study aims to provide anappropriate Indonesian tourism demand model and analyze the determinants of tourism demandin Indonesia. The estimation technique used is a static panel regression. The results of this studyprove that there is multicollinearity in the tourism demand model when exchange rate and relativeprice are combined into one model, showing that relative price are good proxies in representingtourism price, and showing that substitution price are the main determinants of tourism demand inIndonesia. The policy implications recommended in this study are monitoring the economicgrowth of the origin countries of most tourists visiting Indonesia, improving the qual ity ofIndonesian tourism, and developing the Wonderful Indonesia program.
The Impact of Village Fund Program on Improving Well-being
Authors: Joetarto Bagoes , Setiawan Agung , Farida Farida
Published: March 2021

Laws no. 6 of 2014 concerning villages has placed villages at the forefront of development and improvement of community welfare. Villages have been given adequate authority and availability of Village Funds, so that it can manage the village’s potential, solve problems, economic growth, and improve welfare in the village. Researchers will measure changes in expenditu re per capita of the population before and after the implementation of the Village Fund program by conducting statistical analysis on secondary data from 432 districts as a research sample. From the results of analysis using regression panel data, it shows that the intervention of the Village Fund has a positive influence on the increase in expenditure per capita of the rural population. In addition, this study also found that the magnitude of the influence of the Village Fund intervention on per capita expenditure varies by region type. First, an increase in per capita expenditure was found to be grater with better village infrastructure conditions compared to areas with poor village infrastructure. Second, same pattern was also found in regions with low poverty rates compared to regions with high poverty rates.  Expenditures per capita rates found higher in regions with low poverty rates compared to regions with high poverty rates.
The Impact of Banking Policies to the Macroprudential Policy
Authors: Kharohmayani Desy , Wiryono Sudarso Kaderi
Published: March 2021

The interaction between banks and macroeconomics is of crucial importance to financial stability. This study aims to answer the question of how macroeconomic shocks are transmitted to banking variables or vice versa. The study investigated the impact of the banking policies, the principal component of analysis (PCA) of banking quality indicators (CAMEL), and BI's rate to the aggregate of GDP and GDP priority sectors. The methodology used is the Factor Augmented Vector Autoregressive (FAVAR) model to observe the endogeneity of the observed variables. The results show that there is substantial heterogeneity in the transmission of macroeconomic shocks, caused by CAR, CAMEL and BI rate. In the short run, we find that the impulse response functions of aggregate GDP and GDP per sector of priority to the shock of the CAR decrease and close to zero in the long term. Our findings align with the expected effects that the CAMEL has implications to the decline of GDP of priority sector. Finally, we find that the impulse response of aggregate GDP and GDP of the priority sector to monetary policy shock decreases in the short run and near to zero in the more extended period
Determinant Return on Assets on Rural Banks in Indonesia
Authors: Amanah Amanah
Published: March 2021

The problem in this study is that the Trend of Return on Assets (ROA) in Rural Banks tends to decrease. The author uses a quantitative descriptive analysis method and the analytical tool used is the ECM (Error Correction Model), the aim of which is to determine what factors influence the Return on Assets (ROA) of Rural Banks in Indonesia. The findings empirically show that the Amount of Money Supply in the long term had a significant effect on the Return on Assets (ROA) of Rural Banks. Whereas in the short term, no significant effect on ROA, General Capital Reserves in the long term have a significant effect on Return on Assets (ROA), while in the short term have no significant effect on ROA, Non Performing Loan (NPL) in the long term and short term effect significant to Return on Assets (ROA), Consumptive Interest Rates in the long term and short term have no significant effect on Return on Assets (ROA), and Working Capital Interest Rates in the long term and short run have no significant effect on Return on Assets ( ROA) Rural Banks in Indonesia
The Analytical Solutions of the Schrodinger Equation for a Single Electron in the Nikiforov-Uvarov Framework
Authors: Yulianto Yacobus , Su'ud Zaki
Published: March 2021

In this study, it is intended to show an alternative method to derive the wave function of a single electron as solutions of the Schrodinger equation. The Nikiforov-Uvarov method was chosen to be utilized since this method can solve the Schrodinger equation with several well-known potentials in the non-relativistic mechanics of quantum. The obtained results of this study have succeed to explain the wave function and the energy eigenvalue for a single electron as lectured in quantum physics textbooks. These results prove that the Nikiforov-Uvarov method provides an alternative procedure to solve the Schrodinger equation.
Pengaruh Faktor Eksposi Digital Radiography (DR) Terhadap Nilai Kontras Pada Citra Phantom Sebagai Organ Tiruan
Authors: Anggara Andhika D
Published: March 2021

Penggunaan radiografi konvensional sudah mulai ditinggalkan dan bergeser pada sistem digital yaitu Digital Radiography (DR). Akurasi DR penting dalam deteksi objek. Tubuh manusia terdiri dari berbagai macam organ dengan berbagai nilai densitas. Baik atau tidaknya sistem radiografi dapat dilihat salah satunya dari kualitas citra yang dihasilkan. Tingginya hasil kualitas citra bermanfaat dalam penentuan diagnosa. Selain itu berdampak pula dalam upaya optimasi dosis pada pasien. Tujuan penelitian ini adalah untuk mengetahui pengaruh faktor eksposi terhadap nilai kontras Digital Radiography (DR) pada citra phantom objek kontras tinggi dan rendah. Penelitian ini akan dilakukan dengan menggunakan phantom sebagai objek citra. Phantom dibuat dengan spesifikasi berbagai objek yang mewakili kontras tinggi dan rendah. Phantom dieksposikan dengan variasi arus waktu dan tegangan pada DR sehingga didapatkan citra yang akan dianalisis kualitasnya. Dari hasil analisis didapatkan bahwa pada variasi arus waktu, semakin besarnya nilai kontras pada citra semakin besar pula nilai arus waktunya. Pada variasi tegangan menunjukkan semakin besar tegangan yang digunakan semakin kecil nilai kontras yang dihasilkan.
Penggunaan Detektor Fotoakustik Untuk Pengukuran Etilen Pada Proses Peroksidasi Lipid Yang Diinduksi Sinar Ultraviolet
Authors: Santosa Ign Edi
Published: March 2021

Pengukuran gas etilen dari proses peroksidasi lipid akibat paparan sinar ultraviolet telah dilakukan dengan menggunakan detektor fotoakustik berbasis laser CO2. Biocream dioleskan pada permukaan kaca dan dimasukkan ke dalam cuvet. Pengukuran konsentrasi etilen dilakukan selama biocream disinari dengan sinar ultraviolet. Hasil eksperimen menunjukkan bahwa etilen yang dihasilkan tergantung pada intensitas sinar ultraviolet dan jumlah lipid yang terkena paparannya.
Exploring new avenues in physical chemistry of hydrophilic polymers: to the 70th anniversary of Professor Sarkyt Elekenovich Kudaibergenov
Authors: Khutoryanskiy Vitaliy
Published: March 2021

This paper is dedicated to 70th anniversary of the prominent Kazakh chemist – professor Sarkyt Elekenovich Kudaibergenov. The information of biographical nature, showing the development of S.E. Kudaibergenov as a scientist, as well as his main research contributions to the field of physical chemistry of hydrophilic polymers and colloidal systems are presented in this paper. This is written in the form of a review of the most important and prominent publications of Prof S.E. Kudaibergenov, published in the journals indexed by Web of Knowledge. Professor S.E. Kudaibergenov has made a substantial contribution to the studies of synthetic and natural polyelectrolytes, their complexes with different compounds, polymeric hydrogels, stimuli-responsive materials, nanoparticles and nanocomposites, as well as applications of different polymeric materials and colloidal systems as catalysts, specialty chemicals, and drug delivery systems. This paper also includes information about the research conducted by Professor S.E. Kudaibergenov on various projects, funded by different organisations, his membership in different journals’ editorial boards, his role in the establishment of the Institute of Polymer Materials and Technologies, his participation in research councils and committees, as well as supervision of numerous students and researchers. The paper includes some photographs of Professor S.E. Kudaibergenov with several international collaborators.
Molecular imprinting of bovine serum albumin and lysozyme within the matrix of polyampholyte hydrogels based on acrylamide, sodium salt of 2-acrylamido-2-methyl-1-propanesulfonic acid and (3-acrylamidopropyl)trimethyl ammonium chloride
Authors: Shakhvorostov Alexey , Kudaibergenov Sarkyt
Published: March 2021

Molecularly-imprinted polyampholyte (MIP) hydrogels based on nonionic monomer – acrylamide (AAm), anionic monomer – sodium salt of 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and cationic monomer – (3-acrylamidopropyl)trimethyl ammonium chloride (APTAC) were obtained by immobilization of bovine serum albumin (BSA) and lysozyme in situ polymerization conditions. It was found that the best amphoteric hydrogel for sorption of BSA is APTAC-75H while for sorption of lysozyme is AMPS-75H. The sorption capacity of APTAC-75H and AMPS-75H with respect to BSA and lysozyme is 305.7 and 64.1-74.8 mg per 1 g of hydrogel respectively. Desorption of BSA and lysozyme from MIP template performed by aqueous solution of 1M NaCl is equal to 82-88%. Separation of BSA and lysozyme from their mixture was performed on MIP templates. The results of adsorption-desorption cycles of BSA on adjusted to BSA polyampholyte hydrogel APTAC-75H and of lysozyme on adjusted to lysozyme polyampholyte hydrogel AMPS-75H show that the mixture of BSA and lysozyme can be selectively separated with the help of MIP hydrogels.
Baltijos valstybių mokėjimų balansų ekonominis statistinis įvertinimas
Authors: Kalinauskas Žilvinas
Published: March 2021

Straipsnyje pateikiami Lietuvos, Latvijos ir Estijos mokėjimų balansai, palyginami pagrindiniai jų straipsniai, apžvelgiama 2002 m. pirmojo pusmečio Lietuvos užsienio prekybos raida. Naudojant išvestinius rodiklius straipsnyje įvertinami Baltijos valstybių einamųjų sąskaitų deficitai.
Roman Terracottas From the Lower City of Olbia from the collection of the National Museum of the History of Ukraine
Authors:   National Academy of Science of Ukraine, National Historical-Archaeological reserve «Olbia», Junior Research Fellow of the Lower Buh region Archaeology Department, PhD in History, Kozlenko Roman , Puklina Olha ,   National Museum of the History of Ukraine, Deputy Chief Collections Curator
Published: March 2021

The article introduces clay figurines of eagles and terracotta of a Roman soldier, which were found during excavations at the Lower City of Olbia in the 1930—1940-ies, and are kept in the National Museum of the History of Ukraine. The iconography of the eagles is similar to the terracotta statuette of an eagle found in the praetorium building in the Upper City of Olbia. The series of rooms, in which the eagle figurines were found, belong to the Roman garrison structures, which were located in the port area of the city. Terracotta eagle figurines could be used in military sanctuaries, and imitate Roman military standards, or be associated with the worship of Jupiter. Analogies to these products are known from the Roman fortresses on the Danube and in Dacia province. The fragment of terracotta with a shield was a part of a Roman soldier figurine with hanging limbs. The warrior was depicted wearing a Roman military cloak (sagum). This indicates his higher rank, in contrast to the soldiers dressed in tunics. In his left hand he holds a shield (clipeus), which depicts a deity in armor, with rays above his head. The terracotta depicts warriors armed with gladius, and belted with a Roman military belt (cingulum militare). They depict the servicemen of the auxiliary troops of the Roman army — auxilia, or, given the non-standard shape of their shields, the sailors of the Moesian fleet (milites classiarii), whose units were stationed in Olbia, as is known from the epigraphic finds. The places of their finds mark the points of deployment of the Roman troops in the Northern Black Sea region. These terracottas could serve as votives in ritual rites associated with the cult of Mithras, which appears in Olbia as a result of the Roman garrison deployment in the city during the second half of the 2nd — first half of the 3rd c. AD.
Penerapan Metode Forward Chaining dengan Case-Based Reasoning pada Kerusakan Komputer
Authors: Sani Asrul , Ferdiyansyah Johan , Sudarsono Bernadus Gunawan , Yuniarto Dwi
Published: March 2021

Masa pertumbuhan teknologi saat ini komputer menjadi kebutuhan primer untuk sebagian besar manusia. Hampir segala bidang pekerjaan sangat bergantung dengan konsumsi teknologi dalam melaksanakan sesuatu pekerjaan. Salah satu teknologi yang banyak digunakan oleh banyak perusahaan merupakan komputer. Hal tersebut tidak terlepas dari permasalahan yang ada pada komputer tersebut. Salah satunya merupakan kerusakan komponen komputer disebabkan karena faktor kelalaian pengguna hingga bencana yang tidak terduga. Oleh karena hal tersebut pengguna rata-rata menggunakan jasa teknisi profesional untuk melakukan perbaikan suatu komputer, tetapi beberapa kelemahan dengan memanggil teknisi ahli yaitu mahalnya biaya yang akan dikeluarkan. Maka dari itu penulis di sini ingin membuat sebuah sistem yang dapat membantu para pengguna komputer untuk dapat mengidentifikasi serta memperbaiki perangkatnya secara mandiri. Pada penelitian ini menggunakan dua buah metode sebagai perbandingan, yaitu: metode forward chaining dan case-based reasoning. Hasil yang dapat diberikan dari metode forward chaining adalah berupa basis pengetahuan serta kesimpulan, sementara untuk metode case-based reasoning menghasilkan keluaran berupa nilai valid dari beberapa proses yang sudah dilakukan. Dari kedua metode tersebut dapat dikatakan bahwa metode case-based reasoning memliki akurasi yang tinggi di dalam menghasilkan suatu kesimpulan dikarenakan adanya perhitungan dan nilai yang didapat. Sistem ini dapat membantu bagi pengguna perangkat komputer untuk lebih mandiri di dalam merawat serta memperbaiki perangkat yang mereka miliki.
Analisis dan Perancangan Sistem Informasi Rekam Medis Puskesmas Jatilawang
Authors: Ramadhan Ginanjar , Kusumaningtyas Rinda Hesti
Published: March 2021

Bidang kesehatan yang semakin hari semakin kompleks, membuat fasilitas kesehatan menerapkan teknologi informasi demi mendukung kinerjanya. Salah satu teknologi informasi yang bisa diterapkan adalah kegiatan rekam medis. Namun, Puskesmas Jatilawang belum menerapkan sistem informasi rekam medis dengan baik. Rekam medis yang berjalan masih menggunakan rekam medis manual atau menggunakan kertas yang memiliki beberapa kelemahan seperti sulitnya ditransfer antar poliklinik, lambatnya proses klaim BPJS, dan mudah hilang, tercecer, serta salah letak. Berdasarkan permasalahan tersebut, maka penulis melakukan kegiatan Analisis dan Perancangan Sistem Informasi Rekam Medis Puskesmas Jatilawang. Analisis dan perancangan sistem ini dibuat menggunakan object oriented dengan pendekatan Rapid Application Development (RAD) dan menggunakan Unifed Modelling Langunge (UML) sebagai alat bantu pendeskripsian dan perancangan sistem. Dengan adanya analisis dan perancangan sistem ini, dapat menjadi sistem usulan dan dapat diterapkan oleh Puskesmas Jatilawang untuk mempermudah kegiatan rekam medis pasien sehingga menjadi akurat, cepat, dan efisien.
Analisis Pengaruh Biaya Terhadap Loyalitas Pengguna Mobile Banking Jenius Menggunakan Model Neural Networks
Authors: Ramadhan Ginanjar , Kusumaningtyas Rinda Hesti , Hasan Taufik Aries Susanto
Published: March 2021

Perbedaan biaya layanan seperti biaya transfer dan biaya administrasi yang diterapkan oleh beberapa institusi menimbulkan beberapa sikap dari nasabah, salah satunya terkait loyalitas pelanggan. Loyalitas merupakan suatu perilaku yang ditunjukkan dengan penggunaan berulang-ulang yang didasarkan pada pengambilan keputusan. Mobile banking Jenius merupakan layanan perbankan yang diberikan oleh Bank Tabungan Pensiunan Nasional (BTPN). Belum diketahui faktor-faktor yang mempengaruhi loyalitas pengguna, membuat mobile banking Jenius belum maksimal dalam pengembangan produk, biaya juga menjadi salah satu faktor yang belum diketahui pengaruhnya sehingga keputusan perubahan biaya tidak diketahui. Status loyalitas pengguna mobile banking Jenius juga belum diketahui, sehingga keputusan untuk membuat program loyalitas belum dilakukan secara maksimal. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang mempengaruhi loyalitas pengguna mobile banking Jenius menggunakan model Neural Networks yang dimodifikasi dengan menambahkan variabel cost. Populasi penelitian ini adalah pengguna mobile banking Jenius dengan teknik pengambilan sampel yaitu random sampling. Sementara analisis data menggunakan pendekatan PLS-SEM dengan bantuan aplikasi Smart PLS 3.0. Hasil dari penelitian ini adalah switching barries, commitment, perceived quality, empathy, cost mempengaruhi perceived value dan customer satisfaction. Perceived value dan customer satisfaction berpengaruh terhadap trust dan customer loyalty.  Hasil dari penelitian ini diharapkan dapat menjadi salah satu bahan pertimbangan pengambilan keputusan Bank BTPN untuk meningkatkan loyalitas pengguna mobile banking Jenius.
Body mass index, waist-to-hip ratio, and body surface area in patients with acute ischaemic stroke in north-eastern Poland
Authors:   Department of Neurology, Medical University of Bialystok, Białystok, Poland, Czarnowska Agata , Werel Paulina ,   Student Scientific Association in the Department of Neurology, Medical University of Bialystok, Białystok, Poland, Stępień Dominika ,   Student Scientific Association in the Department of Neurology, Medical University of Bialystok, Białystok, Poland, Sajdak Jacek ,   Student Scientific Association in the Department of Neurology, Medical University of Bialystok, Białystok, Poland, Stelmaszek Justyna ,   Student Scientific Association in the Department of Neurology, Medical University of Bialystok, Białystok, Poland, Zajkowska Olga ,   Faculty of Economic Sciences, University of Warsaw, Warsaw, Poland, Kapica-Topczewska Katarzyna ,   Department of Neurology, Medical University of Bialystok, Białystok, Poland, Kułakowska Alina ,   Department of Neurology, Medical University of Bialystok, Białystok, Poland
Published: March 2021

Aim of the study: The aim of our study was to analyse the obesity indicators [body mass index (BMI), waist-to-hip ratio (WHR), waist circumference (WC), and the less-known body adiposity index (BAI)] to assess their influence on the severity and short-term outcome in both females and males after ischaemic stroke admitted over a period of 9 successive months to the Department of Neurology at the Medical University of Bialystok, Poland. Materials and methods: Based on the BMI, we divided the patients into the following groups: underweight, normal weight, overweight, and obese. The severity of stroke was evaluated by the National Institute of Health Stroke Scale (NIHSS). STATA 15 software (StataCorp, 2017) was used for statistical analysis. Results: The results demonstrated that there was no association between the BMI and changes in patient condition during hospitalisation in the stroke unit. The BAI had no clear correlation with the short-term outcome. However, a comparison of accuracy revealed that the BAI was a more precise indicator, and could better predict NIHSS improvement over treatment than the BMI. Among the analysed indicators, only the WC correlated with the difference between the NIHSS scores on admission and at hospital discharge. Conclusions: The BMI, used in clinical practice for decades, is far from a precise predictor of functional outcome after ischaemic stroke. This is the first study that takes into account the obesity indicator BAI in patients after acute ischaemic stroke. According to our results, in the future we should focus more attention on abdominal adiposity indicators such as the BAI or WC.
Cannabinoids in the treatment of children with autism spectrum disorder
Authors:   Neurorozwojowe Studenckie Koło Naukowe, Uniwersytet Medyczny w Poznaniu, Poznań, Polska, Stachoń Małgorzata , Sierocka Milena ,   Neurorozwojowe Studenckie Koło Naukowe, Uniwersytet Medyczny w Poznaniu, Poznań, Polska, Poniewierski Piotr ,   Neurorozwojowe Studenckie Koło Naukowe, Uniwersytet Medyczny w Poznaniu, Poznań, Polska,   Katedra i Klinika Reumatologii i Rehabilitacji, Uniwersytet Medyczny w Poznaniu, Poznań, Polska, Kostiukow Anna ,   Katedra i Klinika Reumatologii i Rehabilitacji, Uniwersytet Medyczny w Poznaniu, Poznań, Polska, Samborski Włodzimierz ,   Katedra i Klinika Reumatologii i Rehabilitacji, Uniwersytet Medyczny w Poznaniu, Poznań, Polska
Published: March 2021

Introduction: Isolation of two compounds, tetrahydrocannabinol (THC) and cannabidiol (CBD), contributed to an increased interest in the use of marijuana for medicinal purposes. It was then that research on the effects of marijuana on the course of different diseases began. Aim: The aim of this paper was to analyse the use of cannabinoids in the treatment of children with autism spectrum disorder. Results: There are different methods for cannabinoid administration. Researchers use various preparations with doses ranging between 0.04 mg to 900 mg. Preliminary studies are conducted on animal models, usually in genetically modified mice. Cannabinoids have been found to have a positive effect on social and emotional behaviours of children, as well as to show anxiolytic and antipsychotic effects. Cannabidiol plays an important role in the secretion of vasopressin and oxytocin. Some patients experience adverse effects. Antidepressant and anticonvulsant effects have been observed in patients with neurological and mental disorders. Conclusions: Cannabinoid therapy is not the standard of care in children with autism spectrum disorders, and the doses used vary significantly. There is evidence for the positive effects of cannabinoids in patients with comorbidities. It is possible that cannabinoids have an anxiolytic effect and allow for a reduced use of antipsychotics in the analysed group of patients. Antidepressant and anticonvulsant effects have also been observed. Furthermore, it was shown that CBDs administered in mice with Dravet syndrome improve social behaviour, dysfunction of which is one of the central symptoms of autism spectrum disorder.
Factors influencing senior learners’ language learning motivation. A Hungarian perspective
Authors: Schiller Emese , Dorner Helga
Published: March 2021

The paper aims to investigate Hungarian senior language learners’ motivational profile with a special attention to factors influencing their motivational intensity. We focused on the significant features of Hungarian senior language learners’ motivational behaviour and conducted a survey with thirty senior Hungarian students learning English as a Foreign Language (FL). This instrument was constructed based on Gardner’s socio-educational model and Tremblay and Gardner’s model of second language (SL) motivation. We performed a series of statistical analyses on the data. The results of multiple regression analyses show that the most influential factors regarding motivational behaviour of older language learners in this context are attitude towards leaning the SL and goal specificity.
A rheopheresiskezeléssel szerzett első hazai tapasztalatok
Authors: Soltész Pál , Németh Norbert , Gál Kristóf , Vass Melinda , Diószegi Ágnes , †Mechler Ferenc , Fekete Klára , Somogyi Viktória , Módis László
Published: March 2021

Összefoglaló.
Háttér: A rheopheresis egy szelektív, extracorporalis, kettős
kaszkádfiltrációs eljárás, mely előzetes plazmaszeparációt követően egy
speciális filter segítségével kivonja a vérplazmából a hiperviszkozitásért
felelős komponenseket, úgymint alacsony sűrűségű lipoprotein, lipoprotein(a),
triglicerid, koleszterin, fibrinogén, α2-makroglobulin, Von Willebrand-faktor,
immunglobulin-M. Módszer és Betegek: Klinikánkon az elmúlt 5
évben MONET filter alkalmazásával összesen 80 kezelést végeztünk
hiperviszkozitással összefüggő, időskori száraz maculadegeneratióban, diabeteses
alsó végtagi fekélyben, illetve neuropathiában. Eredmények: A
dolgozatban beszámolunk kedvező klinikai tapasztalatainkról, a viszkozitás, a
klinikai tünetek és az elektroneurográfiai paraméterek tükrében. Orv Hetil.
2021; 162(10): 375–382.

Summary.
Background: Rheopheresis is a selective, extracorporeal, double
cascade filtration method. After a previous plasma separation, with the help of
a special filter it extracts compounds from blood plasma which are responsible
for hyperviscosity such as low-density lipoprotein, lipoprotein(a),
triglyceride, cholesterine, fibrinogen, α2-macroglobulin, Von Willebrand factor,
immunoglobulin M. Method and Patients: In the past 5 years,
with the application of MONET filter we performed 80 therapies to treat
age-related macula degeneration, diabetic foot ulcers and neuropathy which are
complicated with hyperviscosity. Results: The review describes
our benefical clinical experiences in consideration of viscosity, clinical
symptoms and electroneurography parameters. Orv Hetil. 2021; 162(10):
375–382.
Térdporc szegmentálása MR-felvételekből mesterséges intelligencia segítségével
Authors: Szoldán Péter , Egyed Zsófia , Szabó Endre , Somogyi János , Hangody György , Hangody László
Published: March 2021

Összefoglaló.
Bevezetés: A térdízületnek ultrafriss osteochondralis allograft
segítségével történő részleges ortopédiai rekonstrukciója képalkotó
vizsgálatokon alapuló pontos tervezést igényel, mely folyamatban a morfológia
felismerésére képes mesterséges intelligencia nagy segítséget jelenthet.
Célkitűzés: Jelen kutatásunk célja a porc morfológiájának
MR-felvételen történő felismerésére alkalmas mesterséges intelligencia
kifejlesztése volt. Módszer: A feladatra legalkalmasabb
MR-szekvencia meghatározása és 180 térd-MR-felvétel elkészítése után a
mesterséges intelligencia tanításához manuálisan és félautomata szegmentálási
módszerrel bejelölt porckontúrokkal tréninghalmazt hoztunk létre. A mély
convolutiós neuralis hálózaton alapuló mesterséges intelligenciát ezekkel az
adatokkal tanítottuk be. Eredmények: Munkánk eredménye, hogy a
mesterséges intelligencia képes a meghatározott szekvenciájú MR-felvételen a
porcnak a műtéti tervezéshez szükséges pontosságú bejelölésére, mely az első
lépés a gép által végzett műtéti tervezés felé. Következtetés:
A választott technológia – a mesterséges intelligencia – alkalmasnak tűnik a
porc geometriájával kapcsolatos feladatok megoldására, ami széles körű
alkalmazási lehetőséget teremt az ízületi terápiában. Orv Hetil. 2021; 162(9):
352–360.

Summary.
Introduction: The partial orthopedic reconstruction of the knee
joint with an osteochondral allograft requires precise planning based on medical
imaging reliant; an artificial intelligence capable of determining the
morphology of the cartilage tissue can be of great help in such a planning.
Objective: We aimed to develop and train an artificial
intelligence capable of determining the cartilage morphology in a knee joint
based on an MR image. Method: After having determined the most
appropriate MR sequence to use for this project and having acquired 180 knee MR
images, we created the training set for the artificial intelligence by manually
and semi-automatically segmenting the contours of the cartilage in the images.
We then trained the neural network with this dataset. Results:
As a result of our work, the artificial intelligence is capable to determine the
morphology of the cartilage tissue in the MR image to a level of accuracy that
is sufficient for surgery planning, therefore we have made the first step
towards machine-planned surgeries. Conclusion: The selected
technology – artificial intelligence – seems capable of solving tasks related to
cartilage geometry, creating a wide range of application opportunities in joint
therapy. Orv Hetil. 2021; 162(9): 352–360.