bluuebunny/crossref_metadata_2025_split huggingface dataset:
Studies on the transformation of calcium sulphate dihydrate to hemihydrate in the wet process phosphoric acid production
Authors: Grzmil Barbara , Kic Bogumił , Żurek Olga , Kubiak Konrad 
Published: July 2012

Studies on the transformation of calcium sulphate dihydrate to hemihydrate in the wet process phosphoric acid production
The influence of the process temperature from 85°C to 95°C, the content of phosphates and sulphates in the wet process phosphoric acid (about 22-36 wt% P2O5 and about 2-9 wt% SO4
2-) and the addition of αCaSO4·0.5H2O crystallization nuclei (from 10% to 50% in relation to CaSO4·2H2O) on the transformation of calcium sulphate dihydrate to hemihydrate has been determined. The wet process phosphoric acid and phosphogypsum from the industrial plant was utilized. They were produced by reacting sulphuric acid with phosphate rock (Tunisia) in the DH-process. The X-ray diffraction analysis was used to determine the phase composition and fractions of various forms of calcium sulphates in the samples and the degree of conversion of CaSO4·2H2O to αCaSO4·0.5H2O and CaSO4. It was found that the transformation of CaSO4·2H2O to αCaSO4·0.5H2O should be carried out in the presence of αCaSO4·0.5H2O crystallization nuclei as an additive (in the amount of 20% in relation to CaSO4·2H2O), at temperatures 90±2°C, in the wet process phosphoric acid containing the sulphates and phosphates in the range of 4±1 wt% and 27±1 wt%, respectively.
Perception, Processing and Storage of Subphonemic and Extralinguistic Features in Spoken Word Recognition - An Argument from Language Variation and Change
Authors: Łukasiewicz Elżbieta 
Published: July 2012

Perception, Processing and Storage of Subphonemic and Extralinguistic Features in Spoken Word Recognition - An Argument from Language Variation and ChangeRecent research on speech perception and word recognition has shown that fine-grained sub-phonemic as well as speaker- and episode-specific characteristics of a speech signal are integrally connected with segmental (phonemic) information; they are all most probably processed in a non-distinct manner, and stored in the lexical memory. This view contrasts with the traditional approach holding that we operate on abstract phonemic representations extracted from a particular acoustic signal, without the need to process and store the multitude of its individual features. In the paper, I want to show that this turn towards the "particulars" of a speech event was in fact quite predictable, and the so-called traditional view would most probably have never been formulated if studies on language variation and language change-in-progress had been taken into account when constructing models of speech perception. In part one, I discuss briefly the traditional view ("abstract representations only"), its theoretical background, and outline some problems, internal to the speech perception theory, that the traditional view encounters. Part two will demonstrate that what we know about the implementation of sound changes has long made it possible to answer, once and for all, the question of integrated processing and storage of extralinguistic, phonemic and subphonemic characteristics of the speech signal.
The Effects of Age on Stroop Interference in Clinical vs. Healthy Groups of Children
Authors: Okuniewska Hanna , Maryniak Agnieszka 
Published: July 2012

The Effects of Age on Stroop Interference in Clinical vs. Healthy Groups of Children
The Stroop task is widely used to assess attentional dysfunction due to a frontal or frontoparietal deficit and is also thought to be related to the maturation of the prefrontal cortex. The study aimed to prove the diagnostic usefulness of the Polish Names and Colors Interference Test (TINiK) in a clinical setting and to investigate the pattern of performance on four TINiK subtasks according to the type of brain damage (focal or diffuse) and age of the patients. A total of 107 subjects (62 female, 45 male) aged 11-18 were divided into two groups: children aged 10;4-14;6 and adolescents aged 14;7-17;10 within each diagnostic category: healthy (H - 35), heterogeneous focal brain damage (BD - 36) and cardiac arrhythmia (CA - 36). The number of correct responses in the 60s time limit was collected for each TINiK task. The H group significantly outperformed both clinical groups. The H and CA groups show improvement of performance systematically with age on all TINiK subtasks although at a different level. The BD group displayed merely non-significant developmental improvement especially among the adolescent group. A discriminant analysis using the four basic TINiK scores was able to significantly differentiate the BD from the H group (83.1%) and the BD from the CA group (74.6%), but less well the CA from the H group (63.9%). TINiK has acquired preliminary neuro-psychological validation in Polish children. Developmental improvement in interference control may be hampered by various neuropathological mechanisms which are yet to be identified.
Use of ICT and Inappropriate Effects of Computer Use - Future Perspectives of Preschool and Primary School Teachers
Authors: Radetić-Paić Mirjana , Ružić-baf Maja 
Published: July 2012

Use of ICT and Inappropriate Effects of Computer Use - Future Perspectives of Preschool and Primary School Teachers
The aim of this paper is to gain an insight into some aspects of personal computer literacy and preschool and primary school teachers' education on the use of information and communication technologies (ICT). Another aim of the paper is to point out the inappropriate effects of computer use (personal as well as with children of school and preschool ages) according to the students of the Department of Preschool and Primary School Teaching of the Juraj Dobrila University in Pula. The x2 test was used in the data processing, along with the calculation of marginal frequencies for all the examined variables. The scientific and application value of this work is that, based on the indicators obtained, it suggests a need for permanent education of both preschool and primary school teachers on the applicability of ICT at all pedagogical and educational levels, and on all the positive but also negative aspects of ICT use in the widest sense.
Polish Secondary School Students Learning German: Motivation, Orientations and Attitudes
Authors: Okuniewski Jan 
Published: July 2012

Polish Secondary School Students Learning German: Motivation, Orientations and Attitudes
The study investigates the German language learning motivations of Polish secondary school students. Questionnaire data were collected from 100 students aged 16-18 years. Using the AMOS 18 package, structural equation modeling was run to analyze how language learning goals, attitudes, self-related beliefs, and parental encouragement interact in shaping motivated learning behavior. The results of this study reveal that the important factor which exerts the most influence on motivated learning behavior is an integrative attitude, i.e. openness to and interest in the community using the language, as well as the culture, customs and international status. Another important factor in this model is parental encouragement, as it affects the German language community, learning and instrumental values.
A New Species of Oochoristica (Cestoda, Linstowiidae) from the Arabian Toad-Headed Agama, Phrynocephalus Arabicus (Sauria, Agamidae), from the United Arab Emirates
Authors: Schuster R. 
Published: July 2012

A New Species of Oochoristica (Cestoda, Linstowiidae) from the Arabian Toad-Headed Agama,Phrynocephalus Arabicus(Sauria, Agamidae), from the United Arab EmiratesEight complete strobilae ofOochoristica phrynocephaliSchuster, sp. n. were recovered from small intestines of 4 out of 13 Arabian toad-headed agamas,Phrynocephalus arabicusfrom Dubai emirate, United Arab Emirates.O. phrynocephalibelongs to a group ofOochoristicaspecies possessing circular suckers and fewer than 25 testes in a single cluster. It can be distinguished fromO. sobolevi, O. elongata, O. parvogenitalis, O. feliui, O. jonnesi, O. macallisteri, O. lygosomatis, O. junkeaandO. novaezealandaeby smaller scolices and lesser diameter of suckers.
A New Species of the Genus Paraphlegopteryx (Trichoptera, Lepidostomatidae) from India
Authors: Parey S. , Saini M. 
Published: July 2012

A New Species of the Genus Paraphlegopteryx (Trichoptera, Lepidostomatidae) from India
A new species of genus Paraphlegopteryx Ulmer is described and presented from Indian Himalaya, namely Paraphlegopteryx weaveri Parey et Saini, sp. n. from Zemithang (Arunachal Pradesh) belonging to the P. composite group. As an addition to this genus the 15 valid species from India is represented. A key to all the 15 species of India which is modified after Weaver (1999) is provided.
Distribution and Bionomics of Udea Alpinalis (Lepidoptera, Pyralidae) in Western Carpathians (Slovakia)
Authors: Panigaj Ľubomír , Kulfan Miroslav 
Published: July 2012

Distribution and Bionomics of Udea Alpinalis (Lepidoptera, Pyralidae) in Western Carpathians (Slovakia)
Here we summarize all known and new localities with occurrence of Udea alpinalis (Denis et Schiffermüller, 1775) in Slovakia. Furthermore, based on our data we discuss distribution, hypsometric claims and variability of forewings design.
Application of the Bayesian Belief Nets in dam safety monitoring
Authors: Mirosław-Świątek Dorota , Kembłowski Mariusz , Jankowski Władysław 
Published: July 2012

Application of the Bayesian Belief Nets in dam safety monitoring
The systems for earth dam monitoring should enable measurements of basic physical parameters describing the behavior of the structure, including: soil water pressure, soil stress, displacements, leaks, and drainage discharges. In the case of earth dam safety assessment, the monitoring data are used to detect any anomalies in dam behavior. In this paper, the dam safety has been analyzed using the Bayesian Nets. Two types of information: water pressure measurements and drainage discharge measurements are used in analyses. The seepage anomalies in the Klimkówka Dam were considered in demonstrate the practical advantages of using the Bayesian Nets for monitoring data interpretation. Presented examples of the Bayesian Nets applications (forward and backward propagation) in analysis of seepage through earth dams show that this method can be an effective tool supporting an assessment of dams technical condition and monitoring of the dam safety.
Linkage of "Lakes Zwenkau-Cospuden" as one of the elements of land reclamation after the open-cast mines and its future importance for the development of the region
Authors: Gabryś Katarzyna 
Published: July 2012

Linkage of "Lakes Zwenkau-Cospuden" as one of the elements of land reclamation after the open-cast mines and its future importance for the development of the region
The open-cast mine "Böhlen", closed in 1921, in 1969 was transformed into "Zwenkau"("Zw") open-cast mine. In the seventies, together with its smaller neighbouring mine "Cospuden"("Cs"), became one of the greatest enterprises of the Central German lignite mining area. In the last centuries Zw and Cs mines had an significant influence on the economic, technical and scientific progress of this region. Although the mines were in separate mining areas, very close relations of proximity existed between them, particularly in the superposition of the lowering ground water areas. Thus, the total mass of the mine tailings "Cospuden" in the mining sector "Zwenkau" was flattened and designed for land reclamation. Since the cessation of lignite mining in the area Böhlen/Zwenkau/Cospuden the south region from Leipzig has been changed fundamentally. The remaining holes, which mines left behind, became lakes. Along the lakes raised beaches, ports and holiday houses. Lusatia and Central German Mining Administration Company (LMBV), which is now responsible for the reclamation and rehabilitation of disused mines, proposed a new perspective of this region, perceived as a part of nature and human-being. The main emphasis has been placed on the development of created lakes, flow-up phase and good water quality assurance. Some of the new lakes are connected together with artificial canals and locks. This also relates to "Zwenkau-Cospuden Lakes" (LMBV 2009). In this article the methods of management former mining areas in the South from Leipzig, with the great accent put on the linkage of "Lakes Zwenkau-Cospuden", are described. Necessary test on the soil samples from this field are explained. Finally, the influence of the restoration of the area on the development of the region is shown.
A study of application of chalcedonite as a manganese dioxide carrier
Authors: Michel Magdalena 
Published: July 2012

A study of application of chalcedonite as a manganese dioxide carrier
Chalcedonite is a sedimentary siliceous rock, which occurs at four deposits in Poland and is included into a group of unique rocks. Chalcedonite is utilized in water treatment technology, mostly as an effective filtration material due to its mesoporous structure and extended outer surface of the grains. This paper presents three different methods of impregnation of the mineral material (MDMC-1, MDMC-2, MDMC-3) by manganese dioxide. As an oxide carrier chalcedonite was used. The results of the chalcedonite surface modification with SEM-EDS technique were presented. It was found that the chalcedonite is a very good manganese dioxide carrier and the modification of the chalcedonite surface changes its chemical composition, structure and value of the specific surface area.
Linearization of the Sobolev and Babeyko's formulae for transformation of P-wave velocity to density in the Carpathian-Pannonian Basin region
Authors: Csicsay Kristián , Bielik Miroslav , Mojzeš Andrej , Speváková Eva , Kytková Bibiána , Grinč Michal 
Published: July 2012

Linearization of the Sobolev and Babeyko's formulae for transformation of P-wave velocity to density in the Carpathian-Pannonian Basin regionThe initial density model has to be based on a reasonable geological hypothesis and while the modelling process is non-unique, one of the interpretation aims is to define the robust parameters of the model. It is important at this stage to integrate the seismic and gravity data. One of the possibilities how to integrate these data is transformation of the seismic velocities to densities. The Sobolev and Babeyko's formulae belong to the most available relationships for this transformation. They are very complex and rigorous taking into account the PT conditions. On the other hand its application is relatively complicated. Therefore the main goal of the paper is to try to determine more easily the formula for transformation of the seismic velocities to densities. Based on the analysis of the results obtained using the Sobolev and Babeyko's formula on real data, we found out that in the Carpathian-Pannonian Basin region this formula can be transformed to simpler linear velocity-density relationship with required accuracy.
Fuzzy Control of the Permanent Magnet Synchronous Machine Singularly Perturbed Fed By a Three Level Inverter
Authors: Massoum Ahmed , Meroufel Abdelkader , Wira Patrice , Fellah Mohammed 
Published: July 2012

Fuzzy Control of the Permanent Magnet Synchronous Machine Singularly Perturbed Fed By a Three Level InverterIn this paper, we present the control technique based on the singular perturbation technique controlled by a fuzzy regulator applied to the permanent magnet synchronous machine (PMSM). This technique applied to the PMSM conducts to a separation of the variables into disjoined subset or two separated models: one having a slow dynamics, and the other a fast dynamics. To ensure certain robustness to the decoupled control system based on these techniques, the control speed and theIdcurrent is carried out by fuzzy regulators. A qualitative analysis of the principal variables evolution describing the behavior of the global system (PMSM-Inverter with MLI-Control) and its robustness is developed by several tests of digital simulation in last stage.
A Study of the Behaviour of Water Droplets Under the Influence of Uniform Electric Field in Epoxy Resin Samples
Authors: Cheng Yonghong , Zhao Xu , Danikas Michael , Christantoni Despoina , Zairis Pavlos 
Published: July 2012

A Study of the Behaviour of Water Droplets Under the Influence of Uniform Electric Field in Epoxy Resin SamplesWater droplets on the surface of epoxy resin samples were investigated under the influence of uniform electric fields. Several parameters of water droplets were investigatedwrtthe flashover voltage of the epoxy resin samples, such as water conductivity, droplet volume, number of droplets as well as the positioning of the droplets regarding the electrodes. The droplet behavior is affected by the above mentioned parameters. Perhaps the most striking conclusion is that the flashover voltage depends more on the positioning of the dropletswrtthe electrodes than on the droplet volume and/or number of droplets.
Influence of harvest date and storage conditions on the content of chlorophyll pigments in pear peels
Authors: Błaszczyk Jan 
Published: July 2012

Abstract
During each season, pears were harvested on three dates at four-day intervals. The fruit was stored for 150 days in temperatures of 0-0.5°C in common cold storage (NA - normal atmosphere) and also in controlled atmospheres (CA) of different gaseous content: 0.8% CO2 + 2% O2, 2% CO2 + 2% O2 and 3% CO2 + 3% O2. After removing the pears from storage they were additionally stored for seven days in a temperature of 17°C - simulated shelf life. The content of chlorophyll pigments (chlorophyll a + b) was determined after each harvest date, storage time and simulated shelf life. Based on the results, I concluded that the a + b chlorophyll content in the peel of both pear cultivars significantly decreased along with the subsequent harvest date. In addition, the storage conditions had a significant influence on the studied factor. Compared to the normal atmosphere, the controlled atmosphere conditions were more efficient in slowing the yellowing of the fruit due to reduced chlorophyll degradation. The atmosphere consisting of 3% CO2 + 3% O2 or 2% CO2 + 2% O2 was more favourable for the higher content of chlorophyll a + b in the peel of ‘Conference’ pears than 0.8% CO2 + 2% O2. In the case of ‘Concorde’ pears, the influence of particular compositions of CA on the content of chlorophyll a + b changed over the years.
Effect of seed age and fertilisation on the growth and decorative quality of selected ornamental grasses
Authors: Kapczyńska Anna 
Published: July 2012

Abstract
Ornamental grasses have become a popular group of plants for use in landscaping. The aim of the present experiment was to assess the influence of seed age on the germination of ornamental grasses. In the glasshouse experiment, seeds of three grass genera, Melica, Pennisetum and Stipa, were tested. The seeds came from the Plant Breeding and Acclimatisation Institute in Bydgoszcz. They were harvested in 2005, 2006 and 2007 (so they were three years old, two years old, and one year old, respectively). In all the genera, the youngest seeds showed the highest germination, which varied between 61% (Melica transsilvanica) and 74% (Melica ciliata ssp. taurica). The germination process of the oldest seeds (three years old) proceeded at various rates, depending on the species, but the highest ability to germinate was observed in Pennisetum flaccidum (39%) and Stipa tenuissima (42%). After germination, Melica sp. and Stipa sp. plants were repotted and treated with Hydrocote (a slow-release fertiliser). The results obtained indicated that the fertilisation of the grasses significantly increased the height of the plants. Plants of Melica altissima ‘Atropurpurea’ also formed three times more inflorescences than the control plants. The application of the fertiliser had a positive effect on leaf colour (a more intense green) in all of the tested genera.
The base colour of fruit as an indicator of optimum harvest date for two apple cultivars (Malus domestica Borkh.)
Authors: Łysiak Grzegorz 
Published: July 2012

Abstract
The CIE L* a* b* colour system is used to evaluate food colours. Its advantage is that the base skin colour in apples can be measured on the same fruit before and on the optimum harvest date. The aim of the research conducted between 2002 and 2006 was to evaluate a quick and non-destructive method of determining the optimum harvest date of apples intended for long storage based on the changes observed in the base skin colour. Another important research aspect was to compare this method with other methods or indicators used to determine the harvest date. The colour measurement was conducted on two apple cultivars, Šampion and Royal Gala, with the aim of, amongst other factors, establishing a standard for each that could be used in practice in fruit production. From amongst the evaluated colour indicators L*, a*, b*, Hueab angle and chroma, changes in the base colour were best illustrated by the a* coordinate value and Hueab angle value. Based on the evaluation of the quality of fruits after storage, it can be stated that the fruits had the best quality when the a* coordinate during harvest ranged between -7 and -8 for ‘Šampion' and between -3 and -5 for ‘Royal Gala’. The Hueab angle assumed a value between 100 and 101 for ‘Šampion' and between 96 and 99 for ‘Royal Gala’ during the optimum harvest date. Therefore, the a* coordinate and the Hueab angle can be used to indicate harvest maturity.
Peutz-Jeghers polyp: A Retrospective Study on Twelve Cases Received at the Department of Pathology, Bangabandhu Sheikh Mujib Medical University
Authors: Choudhury Tamanna , Enam Suraiya , Begum Ferdousy , Taufiq Md. , Kamal Mohammed 
Published: June 2012

Background: Peutz Jegher syndrome is a rare inherited condition characterized mainly by gastrointestinal hamartomatous polyposis and mucocutaneous pigmentation. The polyps are mostly found in the small bowel and less frequently in the stomach and large gut. Objectives: This study was done to observe the clinical and pathological features of Peutz Jegher polyps. Methods: A retrospective study was carried out in the Department of Pathology, Bangabandhu Sheikh Mujib Medical University (BSMMU) during the five and a half year period from 1st January 2006 to 30th June 2011. From the records the cases which were diagnosed as Peutz Jeghers polyps were sorted out, clinical data was compiled and slides were reviewed. Results: During this period 12 cases were diagnosed as Peutz Jeghers polyp. Most of these (n=58.33%) occurred in the second decade of life and majority (n=9) were located in the large gut including sigmoid colon and rectum. Both sessile as well as pedunculated types were seen. All had characteristic histologic features of Peutz Jeghers polyps and in only one case there was a mild dysplastic change in the glandular lining epithelium. Conclusion: Close monitoring of the patients with peutz Jeghers polyp can reduce the morbidity of this condition.DOI: http://dx.doi.org/10.3329/bsmmuj.v5i1.10994 BSMMU J 2012; 5(1):12-17