bluuebunny/crossref_metadata_2025_split huggingface dataset:
Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology
Authors: Yang Ling-zhi , Jiang Tao , Li Guang-hui , Guo Yu-feng , Chen Feng 
Published: July 2017

AbstractWith the increase of hot metal ratio in electric arc furnace (EAF) steelmaking process, physical sensible heat and chemical latent heat of gas increased significantly. As EAF raw material condition is similar to basic oxygen furnace (BOF), and the condition of BOF gas waste heat utilization technology is mature, waste heat utilization technology in EAF steelmaking will be getting more and more attention. Scrap preheating and steam production as mature technology is the main way of EAF gas waste heat utilization. Power generation converted high temperature steam to electricity will further improve the EAF gas utilization value. The previous ways are to recycle physical sensible heat of EAF gas. To use chemical latent heat of gas, the secondary combustion technology is usually adopted to make CO fully burn into CO2. Coal gas production can fully recycle the chemical latent heat of gas theoretically, which is higher efficiency than other ways. Coal gas production needs a stable steelmaking process to stabilize high temperature gas. And the way need to develop EAF sealing technology, oxygen removal technology and gas purification technology, to make gas content meet the requirements of coal gas production in EAF steelmaking process.
Study on Dynamic Development of Three-dimensional Weld Pool Surface in Stationary GTAW
Authors: Huang Jiankang , He Jing , He Xiaoying , Shi Yu , Fan Ding 
Published: July 2017

AbstractThe weld pool contains abundant information about the welding process. In particular, the type of the weld pool surface shape, i. e., convex or concave, is determined by the weld penetration. To detect it, an innovative laser-vision-based sensing method is employed to observe the weld pool surface of the gas tungsten arc welding (GTAW). A low-power laser dots pattern is projected onto the entire weld pool surface. Its reflection is intercepted by a screen and captured by a camera. Then the dynamic development process of the weld pool surface can be detected. By observing and analyzing, the change of the reflected laser dots reflection pattern, for shape of the weld pool surface shape, was found to closely correlate to the penetration of weld pool in the welding process. A mathematical model was proposed to correlate the incident ray, reflected ray, screen and surface of weld pool based on structured laser specular reflection. The dynamic variation of the weld pool surface and its corresponding dots laser pattern were simulated and analyzed. By combining the experimental data and the mathematical analysis, the results show that the pattern of the reflected laser dots pattern is closely correlated to the development of weld pool, such as the weld penetration. The concavity of the pool surface was found to increase rapidly after the surface shape was changed from convex to concave during the stationary GTAW process.
Problems Affecting Successful Implementation of Blended Learning in Higher Education - The Teacher Perspective
Authors: Mozelius Peter , Rydell Claes 
Published: July 2017

Abstract
An increased use of blended learning environments in higher education has been an emerging trend in the 21st century. Sometimes the definition of blended learning has been so broad that it makes it hard to find any learning environment in higher education that would not be included. Many research studies have been reporting the pros and cons of blended learning from the university perspective and the learner perspective. There are less studies on the teacher view of blended learning environments. This study had the aim to explore, analyse and discuss teachers’ perceived problems and barriers to a successful implementation of blended learning at university level. The used research strategy was a qualitative cross-sectional study where data has been collected with semistructured interviews. Six teachers that all are subject matter experts and instructional designers for courses on computer science were interviewed. In a computer assisted thematic analysis found codes and keywords was grouped together to create themes. Four themes or problematic areas were found, and that they combined could give an explanation to what teachers experience as problems when implementing blended learning environments. First theme is documentation and support, where teachers find the scarcity of documentation in their virtual learning environment a problem for implementing extension modules. Second theme is introduction and training, where teachers find it problematic that they rarely get a proper introduction or further training on the use of tools and modules. Third theme is the time aspect, teachers suffer from the lack of time to implement blended learning thoroughly in their courses. Last found theme is didactics, where teachers do not feel that they have the required knowledge or skills to apply the appropriate instructional design for blended learning environments.
A forensic linguistics problem: Asylum seekers’ dialect identification difficulties in under-documented adjacent Arabic dialects
Authors: Rosenhouse Judith 
Published: July 2017

Abstract
Forensic linguistics includes dialect identification also named Language Analysis for the Definition of Origin (LADO). LADO is used mainly for defining asylum seekers’ mother tongue as reflecting the speaker’s origin. The focus here is on linguistic aspects of adjacent Levant Arabic dialects in Israel (I), Jordan (J) and the Palestinian Authority (PA). Arabic has many spoken dialects in addition to Modern Standard Arabic, its written variety. Differences and similarities between dialects create confusion regarding speakers’ origin. Rich Arabic dialectal literature studies the Levant dialects, but not the precise differences between adjacent dialects. We discuss examples of adjacent under-documented Arabic dialects, which cause difficulties in LADO. The paper presents the linguistic issues involved in examples of phonological, morphological and lexical elements of Arabic dialects spoken in I, J and the PA. In Arabic dialects of these areas, some “Shibboleth” features could identify a speaker’s “mother dialect”. Linguists might use such forms for identification, if speakers use them in spontaneous speech. If they do not occur in a speaker’s recording, however, the interviewer should try to elicit them in the recording session. Currently, inter-dialect language contacts are frequent and complex, and therefore more research is required to provide the missing information.
“There are no words that are ‘clear’ in and of themselves”: Meta-pragmatic comments and semantic analysis in legal interpretation
Authors: Livnat Zohar 
Published: July 2017

Abstract
Legal interpretation often includes a profusion of meta-pragmatic comments about the interpretation process itself. Thus, while pragmatic theories refer to the interpretation processes as natural, mostly unconscious processes, in legal interpretation the inference processes take on a conscious form. Meta-pragmatic comments provide a glimpse into this process and surface various aspects of it that have been described theoretically. The aim of this study is to examine the possibility of applying theoretical pragmatic terms to the legal interpretation discourse.A semantic-pragmatic analysis of a few cases shows that while the linguistic component of the legal interpretation makes it easy to apply pragmatic theory, some of the procedures performed by judges are incompatible with a semantic-pragmatic interpretation and contradict its theoretical assumptions. The purposive approach to interpretation that has developed in the Israeli legal system raises some serious problems in that sense. Applying the objective purpose of a statute even when it is obvious that the legislators could not have desired that in order to change the law cannot be considered “interpretation” in the pragmatic sense, since the central element of speaker’s intentions has been given a completely different meaning, and the aim of the interpretation procedure, namely identifying the speaker’s intentions, has for the most part been lost. This paper suggests that these cases should be viewed as exceptions to pragmatic interpretation and they do not permit application of pragmatic theory to them, at least not of the types of approaches attributed to Grice’s legacy. Nevertheless, this does not mean that theoretical pragmatic tools are not applicable to judicial opinions and to other kinds of legal text.
Optimal Concentration of Organic Solvents to be Used in the Broth Microdilution Method to Determine the Antimicrobial Activity of Natural Products Against Paenibacillus Larvae
Authors: Cugnata Noelia Melina , Guaspari Elisa , Pellegrini Maria Celeste , Fuselli Sandra Rosa , Alonso-Salces Rosa Maria 
Published: July 2017

Abstract
American Foulbrood (AFB) is a bacterial disease, caused by Paenibacillus larvae, that affects honeybees (Apis mellifera). Alternative strategies to control AFB are based on the treatment of the beehives with antimicrobial natural substances such as extracts, essential oils and/or pure compounds from plants, honey by-products, bacteria and moulds. The broth microdilution method is currently one of the most widely used methods to determine the minimum inhibitory concentration (MIC) of a substance. In this regard, the fact that most natural products, due to their lipophilic nature, must be dissolved in organic solvents or their aqueous mixtures is an issue of major concern because the organic solvent becomes part of the dilution in the incubation medium, and therefore, can interfere with bacterial viability depending on its nature and concentration. A systematic study was carried out to determine by the broth microdilution method the MIC and the maximum non inhibitory concentration (MNIC) against P. larvae of the most common organic solvents used to extract or dissolve natural products, i.e. ethanol, methanol, acetonitrile, n-butanol, dimethylsulfoxide, and acidified hydromethanolic solutions. From the MIC and MNIC for each organic solvent, recommended maximum concentrations in contact with P. larvae were established: DMSO 5% (v/v), acetonitrile 7.5% (v/v), ethanol 7.5% (v/v), methanol 12% (v/v), n-butanol 1% (v/v), and methanol-water-acetic acid (1.25:98.71:0.04, v/v/v).
Gyne and Drone Production in Bombus Atratus (Hymenoptera: Apidae)
Authors: Padilla Sandy C. , Cure José R. , Riaño Diego A. , Gutierrez Andrew P. , Rodriguez Daniel , Romero Eddy 
Published: July 2017

AbstractFor over a decade, our research group has studied the biology of the native bumblebee, Bombus atratus, to investigate the feasibility of using it to pollinate crops such as tomato, strawberry, blackberry and peppers. Traditionally, captive breeding has depended on the use of captured wild queens to initiate the colonies. The goal of the current work is to investigate conditions required to produce new queens and drones in captivity. In this study, 31 colonies were evaluated under either greenhouse or open field conditions over a 15 month period. A total of 1492 drones (D) and 737 gynes (G, i.e., virgin queens) were produced by all colonies, with 16 colonies producing both drones and gynes (D&G), 11 producing only drones (D) and 4 producing neither. Some of the D&G colonies had more than one sexual phase, but no colonies produced exclusively gynes. More drones and fewer gynes were produced per colony under greenhouse conditions with the highest number of drones produced by D&G colonies. The numbers of immature stages per cell declined in colonies as increasingly more resources were allocated to the production of gynes and the maintenance of increased nest temperature.
Methoprene and Temperature Stimulation of Emergence and Longevity in Adults of Osmia Rufa L. (Megachilidae; Apoidea) During Wintering Period
Authors: Giejdasz Karol , Wasielewski Oskar 
Published: July 2017

Abstract
In this study methoprene, a juvenile hormone analogues, was tested as a factor that stimulates the end of diapause, bee activation and emergence. In addition, the survival of bees was checked when combined with an application of methoprene. The experimental activation of wintering bees was carried out once a month between December and March, Three groups of bee cocoons were selected for each activation term: treated with either methoprene or acetone as vehicle control and untreated as controls. After the applications were finished the cocoons were incubated at temperature 26°C. The emerged adult males and females were then kept in the laboratory and fed sucrose solution to evaluate the longevity of bees. The application of juvenile hormone analogue reduced the emergence time of adult bees in December, February and March. The rate of emergence presented in the form of cumulative percentage of emerged adult bees indicated that the bees treated with methoprene started to emerge 1-2 days earlier than bees from acetone and control groups and finished emergence 2-5 days earlier too. Methopren application did not reduce the longevity of the bees after emergence. Moreover, the median longevity of these females was higher than untreated in December and February.
The Exposure of Honey Bees to Pesticide Residues in the Hive Environment with Regard to Winter Colony Losses
Authors: Pohorecka Krystyna , Szczęsna Teresa , Witek Monika , Miszczak Artur , Sikorski Piotr 
Published: July 2017

Abstract
The present studies are the second part of the research project dedicated to finding the causes for increased winter mortality of honey bee colonies. The aim of this task was to investigate incidents of overwintered colonies′ death with regard to the potential interrelation to the exposure to pesticides. The samples of winter stores of bee bread and sugar food (honey or syrup processed by bees), beeswax and bees collected from apiaries with low and high rates of winter colony mortality were searched for acaricides used to control V. destructor and plant protection pesticides. The presence of acaricides used in apiculture has been detected in the 51% beeswax samples. The most abundant acaricide was tau-fluvalinate. The stores of bee bread and sugar food had a similar frequency of plant protection pesticide occurrence, ranging between 50-60%, but the number of active substances and their concentrations were substantially lower in sugar food samples. The most prevalent pesticides in pollen were fungicides (carbendazim and boscalid) and insecticides (acetamiprid and thiacloprid). Only a few pesticides were found in the several dead honey bees. The level of pesticide contamination (frequency, concentration, toxicity) of hive products and bees originating from apiaries with both a high and low winter colony survival rates, was similar, which created a similar extent of risk. Although the multiple varroacides and pesticides were present in the hive environment we not found unequivocal links between their residues and high winter colony mortality.
An Effective Technique to Track Objects with the Aid of Rough Set Theory and Evolutionary Programming
Authors: Shanmugapriya Kumaraperumal , Malar RajaMani Suja Mani 
Published: July 2017

Abstract
Due to its wide range of applications, the impact of multimedia in the real world has shown stupendous growth. Texts, images, audio, and video are the different forms of multimedia which are utilized by humans in various applications such as education and surveillance applications. A wide range of research has been carried out, and here in this paper, we propose an object racking with the aid of rough set theory in combination with the eminent soft computing technique evolutionary programming. Initially, the input video is segregated into frames, then the frames that belong to particular shots are identified through the shot segmentation process, and after that the object to be tracked is identified manually. Subsequently, the shape and texture feature is extracted, and then the rough set theory is applied. This is done to identify the presence of object in the frames. Consequently, genetic algorithm (GA) is utilized for the object monitoring process to mark the object with variant color. As a result, the selected object is tracked in an effective manner.
Serological and molecular detection of Bean leaf roll and Chickpea chlorotic stunt luteoviruses in chickpea from Iran
Authors: Hajiyusef Tara , Shahraeen Nooh , Maleki Mojdeh 
Published: July 2017

AbstractChickpea (Cicer arietinumL.) is an important legume crop and widely cultivated in northwestern provinces of Iran. During a survey in the 2015 growing season a total of 170 selected chickpea plants with general yellowing symptoms including stunting and leaf bronzing were collected. Serological Elisa and tissue blot immunoassay (TIBA) tests revealed the presence ofBean leaf roll virus(BLRV) andChickpea chlorotic stunt virus(CpCSV) as the predominant viruses in the region. Some serologically positive samples of BLRV and CpCSV were selected and rechecked by RT-PCR. The results of amplified PCR products using a specific pair of primers towards theCpgene region of the viruses were approximately 413 bp for CpCSV and 391 bp for BLRV. Results obtained from sequence comparison of BLRV (IR-F-Lor-5) isolate form two subgroups with eight other BLRV isolates from GeneBank indicating a high homology of 96% with isolates from Argentina, Germany, Tunisia, USA, Spain, and Colombia. An isolate from Norabad (Iran) (IR-Nor) had 98% homology with HQ840727 Libyan isolate. CpCSV sequence comparison with six other GeneBank isolates indicated 98% homology with isolates from Tunisia and Azerbaijan. The overall results of this research revealed the CpCSV and BLRV (luteoviruses) associated with the yellowing disease syndrome of chickpea crops in the surveyed region.
A study on Sorghum bicolor (L.) Moench response to split application of herbicides
Authors: Kaczmarek Sylwia 
Published: July 2017

AbstractField experiments to evaluate the split application of mesotrione + s-metolachlor, mesotrione + terbuthylazine, dicamba + prosulfuron, terbuthylazine + mesotrione + s-metolachlor, and sulcotrione in the cultivation of sorghum var. Rona 1 were carried out in 2012 and 2013. The field tests were conducted at the field experimental station in Winna Góra, Poznań, Poland. Treatments with the herbicides were performed directly after sowing (PE) and at leaf stage 1–2 (AE1) or at leaf stage 3–4 (AE2) of sorghum. The treatments were carried out in a laid randomized block design with 4 replications. The results showed that the tested herbicides applied at split doses were effective in weed control. After the herbicide application weed density and weed biomass were significantly reduced compared to the infested control. The best results were achieved after the application of mesotrione tank mixture with s-metolachlor and terbuthylazine. Application of split doses of herbicides was also correlated with the density, biomass, and height of sorghum.
Post-intensive care syndrome: An overview
Authors: Rawal Gautam , Yadav Sankalp , Kumar Raj 
Published: July 2017

Abstract
Survival of critically unwell patients has improved in the last decade due to advances in critical care medicine. Some of these survivors develop cognitive, psychiatric and /or physical disability after treatment in intensive care unit (ICU), which is now recognized as post intensive care syndrome (PICS). Given the limited awareness about PICS in the medical faculty this aspect is often overlooked which may lead to reduced quality of life and cause a lot of suffering of these patients and their families. Efforts should be directed towards preventing PICS by minimizing sedation and early mobilization during ICU.All critical care survivors should be evaluated for PICS and those having signs and symptoms of it should be managed by a multidisciplinary team which includes critical care physician, neuro-psychiatrist, physiotherapist and respiratory therapist, with the use of pharmacological and non-apharmacological interventions. This can be achieved through an organizational change and improvement, knowing the high rate of incidence of PICS and its adverse effects on the survivor’s life and daily activities and its effect on the survivor’s family.
Exploring patient characteristics and barriers to Hepatitis C treatment in patients on opioid substitution treatment attending a community based fibro-scanning clinic
Authors: Crowley Des , Cullen Walter , Laird Eamon , Lambert John S. , Mc Hugh Tina , Murphy Carol , Van Hout Marie Claire 
Published: July 2017

Abstract

Background and Objectives
Hepatitis C virus (HCV) infection is a major public health issue. There is substandard uptake in HCV assessment and treatment among people who inject drugs (PWID). Community fibroscanning is used to assess disease severity and target treatment.

Methods
A survey was administered to a cohort of chronically HCV infected patients attending a community fibroscanning clinic. Questions targeted diagnosis of HCV, suitability, willingness and barriers to engagement in treatment. Descriptive and regression analysis, with thematic analysis of open-ended data was conducted.

Results
There was high acceptance of community fibroscanning among this cohort with over 90% (68) attending. High levels of unemployment (90%) and homelessness (40%) were identified. Most patients were on methadone treatment and had been HCV infected for greater than 10 years with length of time since HCV diagnosis being significantly longer in patients with fibroscan scores > 8.5 kPa (P = 0.016). With each unit increase in methadone dose, the odds of the >8.5 fibroscan group increased by 5.2%. Patient identified barriers to engagement were alcohol and drug use, fear of HCV treatment and liver biopsy, imprisonment, distance to hospital and early morning appointments.

Conclusion
The study highlights the usefulness of community fibroscanning. Identifying barriers to treatment in this cohort affords an opportunity to increase the treatment uptake. The availability of afternoon clinics and enhanced prison linkage are warranted.
Is aortic aneurysm preventable?
Authors: Das Undurti N. 
Published: July 2017

Abstract
Abdominal aortic aneurysm (AAA) is a chronic inflammatory condition, triggered by the local accumulation of macrophages, oxidative stress and damage to the aortic wall. Pro-inflammatory eicosanoids seem to play a significant role in AAA. The pro-inflammatory events seen in AAA could be due to a deficiency of anti-inflammatory eicosanoids such as lipoxin A4 (LXA4), resolvins, protectins and maresins as a result of reduced tissue concentrations of their precursors: arachidonic acid (AA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). Thus, an imbalance between pro- and anti-inflammatory eicosanoids may underlie AAA. Angiotensin-II (Ang-II), a pro-inflammatory molecule, seems to have a role in AAA. I propose that AAA is due to the local (abdominal aortic wall) deficiency of AA and other PUFAs and their anti-inflammatory metabolites especially LXA4. The beneficial action of EPA and DHA reported in the animal experimental models of AAA induced by Ang-II infusion can be attributed to their (EPA and DHA) ability to enhance the formation of not only resolvins, protectins and maresins but also LXA4. It is likely that abdominal aortic tissue (endothelial cells, smooth muscle cells and other cells) may be deficient in AA, EPA and DHA, and have defective activity of 5-, 12-, and 15-lipoxygenases and cyclooxygenase, especially COX-2 resulting in decreased formation of LXA4, resolvins, protectins and maresins. Thus, methods designed to enhance the formation of LXA4 and other anti-inflammatory eicosanoids may form a new approach to prevent and manage AAA.