bluuebunny/crossref_metadata_2025_split huggingface dataset:
The response of corn (Zea mays L.) cultivars to row spacing under weed interference condition
Authors: MOHAMMADI Gholamreza , NOOKANI Mehdi , MOHAMMADDOUST Hamidreza , KAHRIZI Danial 
Published: April 2019

This study was carried out in order to study the response of corn cultivars to row spacing and weed interference at the Research Farm of Agricultural and Natural Resources Faculty, Razi University, Kermanshah, Iran in 2011. The experiment was a split block factorial based on a randomized complete block design with three replications. Factors consisted of three corn cultivars ('KSC 704', 'Simon' and 'Maxima') and three plant row spacings (45, 60 and 75 cm) under weeded and un-weeded conditions for all of the growing season. Results indicated that for all three corn cultivars, the highest weed dry mass occurred in the row spacing of 75 cm. Weed interference throughout the growing season reduced corn grain yield by 20 %. This condition also significantly decreased corn yield components except the 100-seed mass. Increasing plant row spacing increased weed density, while decreased corn yield by 16.5 %. Corn cultivars were significantly different in terms of the number of seed per ear and 100-seed mass, as 'KSC 704' and 'Simon' showed the highest values for these yield components, respectively. However, the number of ear per plant and grain yield were not significantly different between the corn cultivars under study.
Content of bioactive compounds and antioxidant activity in garlic (Allium sativum L.)
Authors: MICOVÁ Marianna , BYSTRICKÁ Judita , KOVAROVIČ Ján , HARANGOZO Ľuboš , LIDIKOVÁ Adriana 
Published: April 2019

Garlic (Allium sativum L.) is highly regarded throughout the world for both its medicinal and culinary properties. With its bioactive compounds and sulphur containing compounds, high trace mineral content, garlic has shown anti-viral, anti-bacterial, anti-fungal and antioxidant abilities.This work has focused on the measurement and comparison of the total polyphenols content, the total sulphur content and antioxidant activity of the studied varieties of garlic in the area of Nitra and Bardejov, Slovak Republic. The highest content of monitored indicators (TPC, TSC, AOA) was measured in the area of Nitra. TPC was determined using the spectrophotometric method of Folin-Ciocalteu agents. The total polyphenols content were determined in the range 621.13 to 763.28 mg kg-1 in area of Nitra. The content of total sulphur compounds in the area of Nitra ranges from 0.562 to 0.800 % and in the second area ranges from 0.421 % to 0.658 %. Antioxidant activity was measured by the spectrophotometric method using a compound DPPH. The value of antioxidant activity ranged from 12.01 % to 20.22 % in both monitored locations. The content of TPC, TSC and AOA beside the variety may be affected by the localitylinked factors like climatic conditions and the agrochemical composition of the soil.
Deficit irrigation of vines (Vitis vinifera L.) – review of experiences and potential for Slovenia
Authors: SMRKE Tina , ZUPANC Vesna 
Published: April 2019

Deficit irrigation is one of the most researched irrigation water management techniques for vines with many potential benefits for successful grape production. For optimal growth and grape quantity of individual variety, suitable water quantity over growing season should be provided. Due to more frequent droughts vine irrigation will be needed also in Slovenia. The principle of deficit irrigation is affecting vine growth and quality and quantity of the yield by adding smaller amount of water than optimal. Decreased vine growth (reduced growth of shoots, 15.5 % for 'Monastrell, reduced leaf area, reduced pruning mass), smaller berries, and thus yield quantity from 38 % to 57 % for ‘Monastrell’ and 24 % to 27 % for 'Tempranillo', respectively, improved berry composition (higher sugar and antocianin content, lower acid content), better water use efficiency, meaning higher yield per unit of added water, are expected. Most suitable method for deficit irrigation management of vines is by measuring plant water potential. For successful transfer of deficit irrigation in practice, good knowledge of critical growth stages of irrigated vine variety and its behavior in a certain environment is needed. Successful application of this irrigation method in practice will be possible only with financial and expert support.
Study of genetic diversity in different wheat species with various genomes based on morphological characteristics and zinc use efficiency under two zinc-deficient growing conditions
Authors: ABDOLI Majid , ESFANDIARI Ezatollah , ALILOO Aliasghar , SADEGHZADEH Behzad , MOUSAVI Seyed-Bahman 
Published: April 2019

Screening of cash crops to tolerate and grow under low levels of micronutrients is important issue in the plant breeding programs. Thus, the study screened the tolerance of 50 wheat genotypes to zinc (Zn) deficiency in the calcareous soil. The Zn treatment was carried out with application of 5 mg kg-1 (+Zn) and without (-Zn) to the collected soils with initial Zn extractable of 0.5 mg Zn kg-1 soil. The results revealed that the supplementary application significantly increased shoot dry matter, shoot Zn concentration and shoot Zn content compared to the without Zn application (control), but Zn utilization decreased under Zn application. There was considerable genetic variation in Zn efficiency (55 - 118 %), shoot Zn concentration (11.8 - 27.0 and 14.3 - 39.6 mg kg-1 DM under deficient and sufficient Zn, respectively), shoot Zn content (0.56 - 2.02 and 0.90 - 2.83 µg plant-1, under deficient and sufficient Zn, respectively) and Zn utilization efficiency (39 - 87.2 and 31.2 - 71.5 mg DM µg-1 Zn under deficient and sufficient Zn, respectively) within wheat genotypes. Cluster analysis based on Zn efficiency, and shoot dry matter at deficient and adequate Zn conditions classified the genotypes into four clusters. Over the two conditions, the most Zn-efficient and Zn-unefficient genotypes were ‘Ankara-98’ and ‘Altintoprak-98’ and ‘Pg"S’ and ‘Zarin’, respectively. Most durum genotypes had a greater Zn efficiency than modern bread wheat genotypes, therefore these genotypes could be effectively used to breed the new cultivars with high Zn efficiency for calcareous soils.
Influence of tree height on the hydrophilic and lipophilic composition of bark extracts from Eucalyptus globulus and Eucalyptus nitens
Authors: Fernández Katherina , Kappes Tomás , González Nicolás , Gutiérrez César 
Published: April 2019

Abstract
The influence of tree height on the composition of bark extractives from Eucalyptus globulus and Eucalyptus nitens was investigated for its potential in the sourcing of valuable compounds. The bark of these trees was extracted at different heights to obtain lipophilic and hydrophilic compounds, which were chemically characterized. The extraction yield of lipophilic compounds was higher for E. globulus than for E. nitens. The type and proportion of the compounds changed with the tree variety and height. The main compounds detected were triterpenic acid derivatives, such as lupane, oleanane and ursane types, followed by fatty acids. The yield extraction of the hydrophilic compounds was higher for E. nitens than E. globulus. The total phenolic content, proanthocyanidins and antioxidant activity of the extracts increased with the tree height in both cases. However, the E. globulus extracts [half maximal inhibitory concentration (IC50) = 13.8 ± 0.2 μg ml−1] showed higher antioxidant activity than did the E. nitens extracts (IC50 = 22.8 ± 0.2 μg ml−1). Differences in the extract composition and the spatial conformation of the molecules (steric effect) could also help to obtain a higher antioxidant capacity from E. globulus extracts. These results show that differentiation by tree height can contribute to the selective enrichment of these valuable compounds.
An Efficient Algorithm Based on Extrapolation for the Solution of Nonlinear Parabolic Equations
Authors: Ghasemi M. 
Published: April 2019

Abstract
Two numerical procedures are developed to approximate the solution of one-dimensional parabolic equations using extrapolated collocation method. By defining two different end conditions and forcing cubic spline to satisfy the interpolation conditions along with one of the end conditions, we obtain fourth- (CBS4) and sixth-order (CBS6) approximations to the solution in spatial direction. Also in time direction, a weighted finite difference discretization is used to approximate the solution at each time level. The convergence analysis is discussed in detail and some error bounds are obtained theoretically. Finally, some different examples of Burgers’ equation with applications in fluid mechanics as well as convection–diffusion problems with applications in transport are solved to show the applicability and good performance of the procedures.
Monotone Iterative Technique for Periodic Boundary Value Problem of Fractional Differential Equation in Banach Spaces
Authors: Chen Pengyu , Kong Yibo 
Published: April 2019

Abstract
In this paper, we are concerned with the periodic boundary value problem of fractional differential equations on ordered Banach spaces. By introducing a concept of upper and lower solutions, we construct a new monotone iterative technique for the periodic boundary value problems of fractional differential equation, and obtain the existence of solutions between lower and upper solutions.
Mesial hyperdontia in Sigmodontinae (Rodentia: Cricetidae), with comments on the evolution of the anteroconid in Myomorpha
Authors: Caccavo Aldo , Weksler Marcelo 
Published: April 2019

Abstract
Supernumerary teeth are common dental anomalies reported in rodents, mainly occurring distally to molars. We report the first case of mesial hyperdontia in wild-caught sigmodontine: a simplified tooth anterior to the right first lower molar in Neacomys amoenus. It affected the first molar morphology, which exhibits an underdeveloped mesial region with a reduced anterior conulid, a similar pattern observed in early known myomorph fossils, including lineages that still possess the last premolar. However, only lineages without premolar display an elongated first lower molar with a large anteroconid, as observed in extant Myomorpha. During the odontogenesis in myomorphs, the posteriormost vestigial diastemal tooth bud, located at the same locus of the last lower premolar, has its development arrested and merges with the cap of the first molar. This process might have contributed to the development of an increased anteroconid in this lineage. The abnormal Neacomys’ atavistic phenotype corroborates the hypothesis that the absorption of the primordium of the last lower premolar had played an important role in the development of first molar’s mesial region. Additionally, it also might have promoted the evolutionary transition from a reduced conulid into an enlarged anteroconid, as deduced from the fossil record and developmental evidence
Engineering Risk of Series Production in Automotive Industry
Authors: Popa Dan Mihai 
Published: April 2019

Abstract
The global objective of this paper is to analyze engineering risk of series production in Automotive Industries based on problems caused by supplied chain of products when a strong process to avoid engineering risk problems is missing. Automotive Industries Companies in Romania use just some theoretical tools like as D-FMEA (Design – Failure Mode and Effect Analysis) for engineering risk in their design products in ADAS domein. The main causes appear after the production starts and sometimes it brings the production to a halt. The risks reveal details of different levels and high risk can be caused by unforeseen challenges during of series production. On this paper, the method for engineering risk of management used is based on project management guide by Paul Roberts adapted to causes identification and risk plan.
Effectiveness of Using the Method of Artificial Intelligence in Maintenance of Ict Systems
Authors: Gościniak Tomasz , Wodarski Krzysztof 
Published: April 2019

Abstract
Reliability of production systems in enterprises is increasingly dependent on the availability of ICT systems that supervise them. The research presented in this paper focuses on the improvement of the availability of ICT systems by identifying possibilities of further automation of their maintenance processes. After preliminary research, it has been concluded that the possibility of further automation by using artificial intelligence methods to support decision making regarding the improvement of ICT systems is worth considering. The main aim of the paper was to carry out research into the possibilities of using and implementing artificial intelligence to support decision making regarding the improvement of ICT systems.
Bulgarische Nietzsche-Reminiszenzen romantisch und modern: Christo Botev und Penčo Slavejkov
Authors: Dimitrova Elka 
Published: April 2019

AbstractThe approach of this text is a comparative reading of particular thematic and ideological similarities and differences between two emblematic Bulgarian poets: Hristo Botev (1848–1876) and Pencho Slaveykov (1866–1912). As they are also representative figures of two significant cultural periods – the National Revival (in its Romantic appearances) and Modernism – the current study develops wider analytical parallels. A number of Friedrich Nietzsche’s concepts and conceptions are selected as a basis for these comparisons. Although Botev did not have direct access to Nietzsche’s works, while Slaveykov, by contrast, was the first active and committed supporter of the German philosopher in Bulgaria, Botev’s views are often surprisingly close to Nietzsche’s, while Slaveykov sounds at times more like a cultural missionary than an organic continuator. Thus, while in the course of the study hidden dialogues and invisible motifs — especially in Slaveykov’s cultural argument with Botev — were revealed, valid starting points were also unearthed for new interpretations of this well-researched literary period. Such points include the romantic characteristics of the Bulgarian National Revival, the connections between the Revival and Modernism, based on the “Romantic common ground” in both movements, and intentions regarding the assertion and/or construction of a native genealogy of Bulgarian Modernism.
Izometric effort in the balance stance of handball throw
Authors: Gherman Alexandru Andrei , Gomboș Leon , Pătrașcu Adrian , Pop Sergiu 
Published: April 2019

AbstractPostural balance plays an important role in high performance sports. The line between success and failure may be decided at such a small scale. In handball, postural balance may affect the accuracy of every technique that a played use, especially the throwing of the ball towards the goal. Our study aimed to identify the degree of influence that izometric effort has over the balance stance during a handball throw. Subjects: 210 1styear students from the Faculty of Physical Education and Sport, Babeș-Bolyai University from Cluj-Napoca, were involved in this study. The subjects were both male and female, with the ages between 18 and 21 years old, with and without former performance athlete background. Materials: We’ve conducted the balance test using the AMTI NETforce BP 400600 force platform and the actual isometric exercises were completed in the same laboratory. Two types of planks and a half-squat were used as the isometric exercises. Results: There was no significant statistical difference between the balance variables before and after isometric exercises while holding the ball in hand. There was a significant statistical difference between the displacement before and after for the position without the ball. Conclusion: There is no impact of the isometric effort over the balance stance while holding the handball ball in the throwing position. We’ve identified a strong relation between the isometric effort and the balance stance without the ball in hand.
Artificial Neural Network to Predict the Compressive Strength of Semilightweight Concrete Containing Ultrafine GGBS
Authors: Parthiban P. , Karthikeyan Jayakumar 
Published: April 2019

Abstract
Design strength is usually determined after a 28-day curing period as per codal provisions. The prediction of compressive strength before curing reduces waiting time and expedites regular construction activity. The aim of this study is to develop a neural network model to predict the 28-day compressive strength of semilightweight concrete (sLWC) containing ultrafine ground granulated blast-furnace slag (UFGGBS). In this investigation, a novel lightweight coarse aggregate that is made up of wood ash was used to prepare sLWC. Six input parameters, such as cement, UFGGBS as cement replacement, lightweight wood ash pellets as coarse aggregate, fine aggregate, water content, and superplasticizer, were used to train the model. The 28-day compressive strength was taken as an output parameter. A total of 384 data was collected from 24 sLWC mixes, each containing 16 specimens, and trained in an artificial neural network (ANN) using a feedforward-backpropagation model. Trained data were validated with a set of tested data. The correlation coefficient R2 values for trained and tested data were 0.932 and 0.917, respectively, with least errors. The study concluded that ANN was a reliable and fast tool for predicting the compressive strength of sLWC. It also efficiently reduced cost and time.
The Performance evaluation of three laboratory diagnostic methods for intestinal parasitic infections at rural Bahir Dar, Northwest Ethiopia: a cross-sectional study
Authors: Bayayibign Birtukan , Melaku Mulat , Gelaye Woynshet 
Published: April 2019

Introduction: Even if the prevalence of intestinal parasites is high in Ethiopia, we still use only direct wet mount method for laboratory diagnosis of intestinal parasitic infections, having low sensitivity, and this significantly increases false-negative results. Therefore, the performance evaluation of three laboratory diagnostic methods is mandatory.
Methods: Single stool sample was collected from March 2018 to June 2018, among 211 school children, and processed using a wet mount, modified Baermann (MB), and Ritchie’s methods. The sensitivity and negative predictive values (NPVs) at 95% confidence interval and Kappa values were calculated in terms of the gold standard method (the combined result of altogether).
Results: The overall prevalence of intestinal parasites was 60.2%. The sensitivity and NPVs of the wet mount, MB, and Ritchie’s methods against the “Gold standard” test were 49.6% and 56.8%, 80.3% and 77.1%, and 67.7% and 68.8%, respectively.
Conclusions: MB showed the best, and wet mount showed the least performance for the laboratory diagnosis of intestinal parasitic infections.
La gestación subrogada bajo prismas diferentes. Cuatro corrientes de análisis para un mismo tema
Authors: Fernández García Sandra , Hernández Corrochano Elena , Konvalinka Nancy Anne , Sánchez Molina Raúl 
Published: April 2019

Este artículo propone diferentes perspectivas de análisis sobre la gestación subrogada o gestación por sustitución, como se denomina en la legislación actual española. Partiendo de un trabajo previo de exploración del campo, los autores se alejan del discurso dicotómico impuesto por diferentes agentes sociales sobre su regulación, para adentrarse en la complejidad epistemológica que este tema presenta en diferentes ámbitos disciplinarios. Dos de las perspectivas aportadas utilizan la gestación subrogación como una ventana a las cuestiones más amplias de los movimientos transnacionales de personas y los significados de los parentescos genéticos, biológicos y sociales; mientras que las otras dos tratan cuestiones más específicas relacionadas con la maternidad y la procreación
Профессиональные стандарты и их реализация в образовательных программах бакалавриата и магистратуры сферы коммуникаций
Authors: Бородай Александр Дмитриевич 
Published: April 2019

<p>Новый этап развития высшего профессионального образования в современной России связан с переходом в 2019 г. на Федеральные государственные образовательные стандарты поколения 3++. Важнейшим элементом образовательных программ по всем направлениям подготовки станет использование профессиональных стандартов как основы формирования профессиональных компетенций будущих бакалавров и магистров. Основные трудовые функции, которые определяют содержание профессиональных стандартов, должны будут стать основой профессиональных компетенций выпускников. Эта часть образовательной программы разрабатывается образовательными организациями. ФГОС 3++ предусматривает определенную систему оценки качества учебного процесса. Следует сказать, что новое поколение образовательного стандарта предваряет следующее, четвертое поколение. Некоторые сюжеты заложены уже в поколении 3++. Например, опора в формировании компетенций на профессиональные стандарты. Не использован потенциал «Закона об образовании в Российской Федерации» в части влияния на профессиональное образование объединений работодателей, профессионально-общественной и общественной аккредитации. В вузах России много интересного опыта, который может стать частью будущих образовательных стандартов.</p>
A escrita de si na leitura do outro - A autoficção e a memória no conto "Ana C.", de Adriana Lunardi
Authors: Silva Vera Lopes 
Published: April 2019

Este resumo anuncia a análise das relações entre biografia, autobiografia, autoficção e memória, no conto “Ana C.”, de Adriana Lunardi, um dos nove de sua obra Vésperas. Nele, entrevozes da literatura universal (quer personagens – Alice, Ulisses e Sísifo–, quer autores – Rimbaud e Machado), são protagonistas Ana Cristina César e Caio de Abreu Fernandes. Suas vidas e obras se entrecruzam, enredadas por outra voz, autoral, que também se manifesta no papel de leitora primorosa, fazendo do conto um arquivo imaterial da memória. Ricardo Piglia, em O último leitor, questiona ‘O que é um leitor?`, afirmando ser essa a pergunta da literatura. O conto lhe responde, internamente. A narrativa se dá em primeira pessoa, a do escritor Caio Fernando Abreu, que, estando à morte, tem a poetisa Ana C. César como guia ao outro mundo. Apesar de avoz narrativa ouvida ser a de Caio, emerge outra, que resgata biografia e estilo do autor, assim como os de sua amiga Ana. Essa outra voz é aquela que, nos bastidores da construção textual, se mostra leitora desses (e de outros) autores e exibe seu modo de leitura pelo de sua escrita, fazendo desse artifício o anteparo do enredo que conta sobre esses seres, construindo, conforme o teórico argentino, “a ficção como uma teoria da ficção”. A obra é, então, um espaço autoficcional, em que, embora se desenrole uma trama de outrem, o conhecimento dessa trama se dá por um escritor que se mostra um escritor-leitor e, por isso, “inquietante, singular e sempre diverso”, ali havendo, então, uma segunda e anterior instância da narrativa. Dentro do tenso limite do conto, a autoficção irrompe, compondo um modelo literário contemporâneo, no qual a ficção contamina a biografia e, assim, entrelaçando discursos literários e, assim, constituindo uma memória do literário.